A member asked:

Fingernail sized blister. bug bite. light red. light itch. underneath the blister skin looks like mars surface (ex: trypophobia pics). 2 weeks now.

A doctor has provided 1 answer

Dr. Glynis Ablon answered

Specializes in Dermatology

I cannot see your: pics but large blisters can be caused by many things including bites, allergic reactions, infection, blistering disorders. I recommend if you aren't clearing in the next week, or if it is getting bigger or more painful, you should see a board certified dermatologist

Answered 1/26/2015

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A member asked:

Fingernail sized blister. bug bite. light red. light itch. underneath the blister skin looks like mars surface (ex: trypophobia pics). 2 weeks now.

A doctor has provided 1 answer

Dr. Glynis Ablon answered

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