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What Are the Symptoms? One or more bubbles of skin filled with clear fluid, ranging from pinpoint size to more than one-half inch in diameter. Depending on the cause, blistering may be accompanied by pain, redness, or itching.

Call Your Doctor If:

Blisters that are caused by chemical contact — or a known disease — should be treated by a doctor.

For some cases of pemphigus, for example, you must take oral medications called corticosteroids on an outpatient basis. In other cases, you may need to take both corticosteroids and antibiotics while you are hospitalized.