What Are the Symptoms of a Blister?
Depending on the cause, blistering may be accompanied by pain, redness, or itching.
Call Your Doctor About a Blister If:
The blister was caused by contact with a chemical -- or if you have an autoimmune blistering disease. Other reasons to seek medical advice is if you have multiple blisters, or they progress in number and location, or if you can’t figure out why you are getting them.