The skin is a barrier between your vital internal organs and the outside environment. When a rash develops, there has been a change in skin color or texture along the surface. Although a rash is generally found to be a minor problem with at-home treatment, it is important to be aware of the type of rash in order to evaluate its seriousness. If not properly diagnosed and treated, rashes can worsen and require medical care and advisement.
Rashes can be caused by contact with viral infections such as herpes, bacterial infections such as sexually transmitted diseases, fungal infections such as yeast infection and irritants, such as allergens like poison ivy. A rash can develop within 48 hours after contact with an irritant, and can vary from appearance of small red bumps, swelling, and redness, to larger blisters, crusty, or scaly areas.
Rashes can also appear as a warning sign that something else is wrong with your body. If problems persist such as pain, rapid swelling, large amounts of skin peeling, and bleeding blisters, it is important to see a dermatologist, especially if symptoms persist longer than usual (two to five days).