Advertisement
question

What might be causing the painful blisters on my buttock?

Anthony L. Komaroff, MD
Anthony L. Komaroff, MD
Internal Medicine
answer
Herpes simplex virus can cause painful blisters on the lips ("fever blisters") and other areas such as the buttocks.

The blisters and surrounding area are painful for two to three weeks, and then usually go away. The virus, however, does not go away. It retreats to nerves and waits to come back again at times of stress, sun exposure, hormonal changes, or illness.

Re-infection often happens in the same body area, but in some cases the infection can spread to other areas such as the eye or, in people with the skin condition called eczema, become widespread.

Herpes can be transmitted to others through contact with infected skin.

If you have painful blisters, see your doctor. Other conditions may cause skin blistering. Your doctor can perform certain tests to help diagnose the problem, including scraping the base of a blister and examining the sample under a microscope.

If the cause is herpes simplex, your doctor can prescribe an anti-viral drug. It can shorten how long the infection lasts. People that have recurrent outbreaks can take a low dose antiviral agent daily. This helps prevent further outbreaks.

Harvard Medical School Skin Care and Repair

More About this Book

Harvard Medical School Skin Care and Repair

Where can you get authorotative advice on skin care? There's plenty of advice out there on TV, the internet and in the aisles of stores peddling skin care products. Despite the abundance of products...

Continue Learning about Herpes Simplex (HSV)

What is the difference between oral and genital herpes?
Oral herpes causes sores and blisters on the lips and gums and in the mouth. Learn more from our exp...
More Answers

Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.