What Tests Diagnose Types Of Rashes
There are many useful laboratory and special examinations that can be helpful in the diagnosis of rash, such as
- bacterial culture to check for bacteria on the skin or in a wound
- microscopic examination of a scraping of skin with potassium hydroxide to look for fungus
- blood tests such as antinuclear antibody , to look for lupus, complete blood count , liver function tests to look for rashes related to hepatitis, and thyroid function tests
- blood test for EBV or a rapid plasma reagin or other blood tests for syphilis may be appropriate
- nasal culture using a cotton tip swab to check for Staphylococcus and other bacteria
- Gram stain to identify bacteria types
- Tzanck prep to look for herpes virus under the microscope
- skin biopsy
- patch test to determine contact allergies
- rashes that come and go can sometimes be diagnosed by high-quality digital pictures and
- some blood tests are less useful in diagnosis. This includes blood testing for herpesvirus and Lyme disease. The problem in both cases is that a “positive test” usually means only that the person has had or been exposed to the disease in the past and says nothing about active or current infection
Unfortunately, the skin biopsy results of viral rashes and drug rashes may be similar enough that a definite diagnosis cannot be made. Nor can a biopsy indicate which drug is the cause of a drug rash.
Treating Psoriasis And Ringworm
Doctors can treat ringworm using antifungal creams or oral antifungal medication. With the correct treatment, ringworm usually goes away within 2 to 4 weeks.
People with low immunity or debilitating conditions may develop severe infections due to ringworm. To prevent the infection from getting worse, they may need more aggressive treatment.
Psoriasis is a chronic condition. Flares come and go over time. There is no cure, though people can manage their symptoms using creams, medications, or light therapy. They can also reduce the risk of flares by avoiding triggers, such as stress or drinking alcohol.
What Does Healing Ringworm Look Like
What does Ringworm Look like? This fungal infection is most recognizable by the circular patches that give it its name. These patches often start as small circles that then begin to heal in the center so that the outer edges resemble rings. Depending upon where you have the ringworm on your body, it might have different characteristics.
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Symptoms Of Psoriasis And Ringworm
Ringworm gets its name from its appearance: a ring-shaped rash. Characteristics include discoloration generally red, gray, or brown, depending on skin color and itchiness. It has clearer skin in the center, giving the rash its ring-like appearance. Close examination of the ringworm rash shows a little bit more scale on the leading edge of the ring. This ring may be raised and may expand over time, while the inside of the ring may contain scattered, discolored bumps. A person with ringworm may have several rings that overlap or exist independently of one another.
Psoriasis most often presents with dry, discolored, cracked patches of skin that are covered with silvery, gray, or clear scales. These plaques may itch, burn, or bleed. Like the rings of a ringworm rash, psoriasis plaques may remain separate or join together to form one larger patch on the skin.
The severity and appearance of psoriasis can vary from person to person. Whereas some people might only see mild flaking in one or two areas, others may have hardened, scaly, irritated patches across much of their body. Individual psoriasis plaques can also vary in size and intensity.
Ringworm Of The Nails
Ringworm is the most common fungal infection of the nails, also called onychomycosis. It can make fingernails look white, thick, opaque, and brittle, but more often toenails look yellow, thick, and brittle. Artificial nails increase the risk for tinea unguium as emery boards can carry infection, and water can collect under the artificial nail, creating a moist area for fungal growth.
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So What Does Plaque Psoriasis Looks Like
First, lets talk about why it looks so scaly. People with plaque psoriasis have an overactive immune system that causes their skin cells to grow at a fast pacein only three to four days, says the National Psoriasis Foundation. However, the cells dont fall off as quickly, which means they build up on the surface of the skin.
This dead skin creates plaques and scales. They can vary in size and form single patches separated by healthy skin or groups of patches that join together and cover large areas of skin.
Plaques are a little elevated. They form a plateau elevated above the surrounding skin. If you closed your eyes and touched psoriasis, you could feel it,Robert T. Brodell, MD, chair of the department of dermatology at the University of Mississippi Medical Center tells Health.
He explains that the scales are referred to as micaceous because they resemble the mineral mica, which splits into very thin elastic plates.
If you stuck your finger underneath one of the scales, a broad white flake comes off unlike some other conditions whereby you might have a fine scale, like dandruff, that doesnt stick together, he says.
When A Red Circle On Your Skin Is Not Ringworm
The Red Circle on Your Skin Might Not Be Ringworm Eczema. Like ringworm, eczema is often first noticed as an itchy, red patch. Granuloma annulare. Because it often looks like a ring of small skin-colored, pink or red bumps, granuloma annulare might be mistakenly identified as ringworm. Psoriasis. Contact dermatitis. Lyme disease. Pityriasis rosea. Takeaway.
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What Does Psoriasis Look Like
What does psoriasis look like? Well, there are several different types of psoriasis and different types of the condition manifest in different ways, which can sometimes make it difficult to determine if what youre experiencing is in fact psoriasis. Were going to show you some psoriasis photos so you can see how different types of psoriasis appear in different parts of the body.
What Causes Psoriasis And Ringworm
The name ringworm can be confusing. It is actually a fungal infection. No worms are involved. Ringworm is very contagious and is passed through contact. Anyone can get ringworm, but certain people are at a higher risk. The fungi that cause ringworm like to live in warm, damp areas. They can be found in locker rooms or public showers.3
Ringworm of the foot is also very common if you wear tight, damp shoes often. Because of this, ringworm is very common in athletes like wrestlers or football players. People living with a weakened immune system may also be at higher risk for ringworm.5
Psoriasis is a chronic autoimmune disease. In autoimmune diseases like psoriasis, the bodys immune system sees itself as a threat so it will attack itself. It is not contagious.4
Scientists believe that psoriasis is passed in families through DNA. Patches often come and go in waves called flare-ups or flares. Many things can cause a psoriasis flare, such as stress or drinking alcohol.6
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What Medications Treat A Rash
Individuals should consult with their health-care provider before starting any medications. The following are examples of effective treatments for specific types of rashes.
- Steroid creams like clobetasol, triamcinolone, and hydrocortisone
- Oral corticosteroids may be used for flares, and long-term immunosuppressive medications may be required in long-term sufferers.
What Are The Signs & Symptoms Of Pityriasis Rosea
Most kids and teens who get pityriasis rosea have no warning signs. Others can have flu-like symptoms a few days before the rash appears.
The rash itself usually starts with one large spot, called the herald patch or “mother” patch, which can appear anywhere on the skin but usually is on the chest, abdomen, back, or thighs. This patch can be raised and may feel scaly. In people with light skin, the patch is pink or red. People with darker skin can see a variety of colors, from violet to brown to gray.
The herald patch might be the only sign of this condition for up to 2 to 3 weeks. As the rash grows, however, smaller spots can appear across the torso and on the arms and legs. The spots look almost identical on both sides of the body. These small patches are usually oval shaped and often form a pattern on the back that looks like a Christmas tree.
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Itchy Skin Rash On Back
This can help find the cause of your itchy skin. A GP may also refer you to see a doctor who specialises in skin problems . Causes of itchy skin. Itchy skin has many possible causes. If you have other symptoms this might help to find the cause. But do not try to diagnose yourself. See a GP if youre .
Comparing Psoriasis And Ringworm: Risk Factors And Complications
The reality is, anyone can get psoriasis, but certain factors can increase your risk of getting this skin disease. As mentioned above, family history is a potential risk factor. Also, viral or bacterial infections can increase the chance of getting psoriasis. People with HIV, for example, are more likely to develop this skin condition than people who have a healthy immune system. Children who tend to get strep throat a lot could also be at increased risk of getting psoriasis. While we cant say for certain why, research shows that excess weight is a risk factor. It seems that psoriasis likes to develop in skin creases and folds. Studies have also indicated that smoking increases the risk as well as severity of psoriasis.
If you have psoriasis, you should be aware that there could be complications associated with it. We have already mentioned psoriatic arthritis, which can cause joint damage and pain, but psoriasis can also lead to eye disorders. There is also evidence that people with psoriasis have a greater chance of getting type 2 diabetes. High blood pressure, Parkinsons, and kidney disease have also found in those who suffer from psoriasis.
While ringworm is common, people who have weak immune systems have difficulty fighting it off. For example, if someone has HIV or has recently been through chemotherapy treatment, infections are more likely to spread.
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Diagnosis Of Psoriasis And Ringworm
If youre experiencing skin symptoms, the best thing to do is see your dermatologist or doctor for the right diagnosis and treatment.
Psoriasis is typically diagnosed by inspecting the affected areas of the body. If a doctor suspects psoriasis, they will likely examine your skin, nails, and scalp. They may also ask you about your family history and any other symptoms youre experiencing. In some cases, a doctor may want to confirm a diagnosis by performing a biopsy. For a biopsy, a small piece of skin is removed and examined in a lab for characteristic signs of psoriasis.
Many doctors and dermatologists can diagnose ringworm based on its appearance. The circular shape of a ringworm rash is so distinctive that you may not require further testing. However, if a doctor is unsure, they will likely take a biopsy, just like with psoriasis, to examine the affected skin under a microscope and confirm the diagnosis. A skin scraping can also be done to look for fungus under the microscope. This procedure can be done in a matter of minutes.
Ringworm can be mistaken for psoriasis if the diagnosis is made by someone who is inexperienced with the two conditions, or if the circular part of the ringworm rash has not yet developed. In some cases, psoriasis may be diagnosed after treatments for ringworm have failed to improve a persons symptoms. Note that psoriasis can also be mistaken for eczema or an allergic reaction.
Related Conditions And Causes Of Ringworm
Ringworm often resembles other conditions, including eczema . Eczema is a condition that makes your skin red and itchy. Like ringworm, itâs common in children, but anyone can get eczema. Symptoms include itching, and red to brownish-gray patches on the skin.
HIV is a virus that attacks the immune system, making you more vulnerable to other infections and diseases . It is spread by contact with certain bodily fluids of a person with HIV. Without treatment, HIV can lead to AIDS .
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Guttate Psoriasis: Small Red Spots
Guttate psoriasis the second most common type of psoriasis is characterized by multiple small, round red spots on the skin, usually widespread across the trunk and limbs. Often resulting from a bacterial or viral infection in children, such as strep throat, these spots come on suddenly and sometimes require oral medication or injections. Mild cases, however, may clear up without treatment.
What Else Should I Ask My Healthcare Provider
If you have psoriasis, ask your healthcare provider:
- How can I prevent outbreaks and control symptoms?
- What medication will work best for me?
- What else should I do to improve symptoms?
- What are my options if creams dont work?
- Will psoriasis ever go away?
A note from Cleveland Clinic
Psoriasis, an itchy skin condition, can come and go throughout your life. Its related to an overactive immune response and is not contagious. If you have skin changes that arent going away, talk to your healthcare provider. There is no cure for psoriasis, but psoriasis treatments can improve symptoms. Your provider may prescribe a special cream or moisturizer or medications. Other therapies are available if creams or medicines dont work. Maintaining your overall health will also help improve symptoms.
Last reviewed by a Cleveland Clinic medical professional on 10/17/2020.
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Shingles: A Rash And Severe Pain That Lingers
Shingles is another viral infection that shares some symptoms with psoriasis. Like psoriasis, shingles can make your skin burn and itch and produces a red, blistered skin rash. Shingles is caused by the same virus that first brings on chickenpox. The virus stays in your body and can come back years later to cause shingles, especially during times of stress or infection. The skin rash of shingles follows the course of a single nerve, usually on the trunk. In some cases, severe pain lasts long after the burning, itchy rash disappears. Shingles is more common in people over age 50.
What Causes Psoriasis On Knees And Elbows
Plaque psoriasis is an immune-mediated skin condition that can cause plaques to form on the skin on any part of the body. Plaques are areas where the skin is inflamed, red, thick covered in layers of silvery, flaky, scaly patches.
Psoriasis can happen anywhere on the body where there is skin. However, it most commonly occurs on the knees and elbows. It is estimated that about one-half of people with psoriasis experience symptoms on their elbows and about one-third experience symptoms on their knees.
The knees and elbows are extremely susceptible to psoriasis because they commonly are subject to friction. Constant exposure to friction, either from clothing rubbing on the skin, movement while sleeping, or engaging in a favorite activity can cause trauma to the skin, similar to a cut, scratch, sting or bite. That trauma is a major trigger of psoriasis flare-ups. Given knees and elbows are constantly in motion throughout the day with regular movement and normal activities, plaques can often form cracks or fissures. Fissures are deep cracks that can be extremely painful and even start to bleed.
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Skin Conditions That Look Like Ringworm
Symptoms of Ringworm. If you look at dog ringworm pictures then you would notice that it can happen anywhere. It can occur on dogs head, paws, ears and forelimbs. The ringworm in dogs pictures look like patchy, circular bald steps that appear red in centre. Gradually it spreads to entire body causing shedding of hairs.
What Causes Infectious Rashes
Skin rashes have an exhaustive list of potential causes, including infections. In a broad sense, rashes are commonly categorized as infectious or noninfectious.
Causes of infectious rashes include:
- Trichophyton is a type of skin fungus that commonly causes rashes of the skin, hair, and nails. This infectious rash is called tinea or ringworm. It may occur on any body surface.
- Candida can cause common yeast infections in moist areas like between the fingers, in the mouth, vaginal area, and also in the groin folds. It would be unusual to have a Candida rash in a dry body area.
- Other much less common fungal infections include cryptococcosis, aspergillosis, and histoplasmosis. These are fairly uncommon in healthy people and are more frequently seen in individuals with a compromised immune system as in HIV/AIDS, immune suppression due to cancerchemotherapy, and patients on long-term immunosuppression because of organ transplant or hematologic diseases.
- Herpes simplex types I and II may cause infections of the lips, nose, facial skin, genitals, and buttocks. HSV infections may also cause erythema multiforme , which is characterized by tender bull’s eye-like targets on the palms, usually corresponding to an HSV flare.
Scabies is a very itchy, contagious superficial skin infestation with a microscopic mite.Lice infestations may cause different types of itchy rashes in the affected areas like the scalp and nape of the neck or pubic area.
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