Symptom Checker


What's causing your ankles to swell or that ache in your forearms? Enter your symptom(s) or choose from symptoms below to find out possible causes.
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Search Results for 'Rash.' Adding another symptom to the list above may reduce the number of possible causes.
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1.  Rashes
A rash is a noticeable change in the texture or color of the skin. The skin may become itchy, bumpy, chapped, scaly, or otherwise irritated. Rashes are caused by a wide range of conditions, including allergies...
  • Raised skin bump
  • Rash
2.  Contact Dermatitis
Contact dermatitis is a condition that makes skin red or inflamed after contact with a particular substance. Contact dermatitis is either the result of an allergen or an irritant. Allergic dermatitis usually appear...
  • Increased skin pigmentation
  • Rash on genitals
  • Back rash
  • Rash scaly
  • Rash
3.  Eczema
Eczema is a common skin condition hallmarked by itchy and inflamed patches of skin, particularly on faces in infants, as well as inside the elbow and behind the knees of children, teenagers, and adults. Also commonl...
  • Rash scaly
  • Nipple itching
  • Lichenification of skin
  • Blanching of skin
  • Rash
4.  Dermatitis
If you've ever been out hiking in the woods, you probably know to avoid certain plants: poison oak, poison ivy, and poison sumac, for example. They're all off-limits, unless, of course, you want to suffer from ...
  • Increased skin pigmentation
  • Swelling of skin
  • On examination - serous bullae
  • Rash
  • Blisters
5.  Allergic Eczema
When your body comes in contact with something that could make you ill, your immune system promotes chemical changes to help your body ward off disease. You are exposed to thousands of substances each day, and most wil...
  • Rash scaly
  • Raised skin bump
  • Dermatitis
  • Rash
  • Papule
6.  Diaper Rash
Diaper rashes are common, and most cases can be treated at home. Some severe and recurrent cases require more advanced medical care.
  • Anal itching
  • Itching
  • Diaper rash
  • Rash on genitals
  • Rash
7.  Bites and Stings
Whether you're in the water, on a mountain trail, or in your backyard, wildlife you encounter have ways of protecting themselves and their territory. One method of defense involves biting or stinging. The wounds ca...
  • Hives
  • Arm pain
  • Throat tightness
  • Bite of mosquito
  • Rash
8.  Allergies Overview
An allergy is the immune system's response to a foreign substance that is not typically harmful to your body. These foreign substances-such as certain foods, pollen, or pet dander-are called allergens. They elicit ...
This condition is considered a medical emergency. Urgent care may be required.
  • Choking sensation
  • Chest tightness
  • Rash on genitals
  • Mouth irritation
  • Rash
9.  Drug Allergy Overview
Drug allergies are overblown responses of the immune system to prescription or over-the-counter drugs that aren't typically harmful. Learn more about symptoms, causes and treatments for allergic reactions to drugs.
This condition is considered a medical emergency. Urgent care may be required.
  • Heart rate altered
  • Body ache
  • Itching, severe
  • Skin redness
  • Rash
10.  Shingles
Shingles is an infection caused by the virus varicella-zoster, which is the same virus that causes chickenpox. Even after chickenpox is treated, the virus may live on in your nerve tissues for years before reactivatin...
  • Hearing loss on one side
  • Feels hot to touch
  • Unpleasant taste in mouth
  • Abdominal pain
  • Rash
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