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Skin Care and Diseases

Sun Burn

05/16/2004 11:12AM

Question:

What should you put on a sun burn that is blistered?

Answer:

SUBJECT:  Sunburn

Once blisters have developed from a sunburn they will run their course.  The objective would be to minimize secondary infection and thus scarring.  I usually recommend that one use saline compresses (two level tablespoons of table salt in a pint of tepid or cool tap water).  You should gently soak the areas for 20 to 30 minutes twice a day.  In time, the blisters will spontaneously rupture and it is usually appropriate to put a topical antibiotic such as polysporin on the areas to minimize secondary infection.  If you have extensive lesions you should see your primary care physician or board certified dermatologist immediately.  Most of these blisters are secondary burns and so are not anesthetic.  They may be very uncomfortable.  Some physicians recommend mild oral analgesics and even topical anesthetics such as Xylocaine 2% gel. 

If your lesions are extensive you should see your physician for care.

Please wear sunscreens in the future!  You should wear a sunscreen with an SPF value of at least 30.  While you will probably not tan very well, you will minimize damage to your skin.  Your pharmacist can direct you to the various sunscreens that have this SPF value and tailor them to your activity.

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Response by:

University of Cincinnati Charles L. Heaton, MD
Professor
Department of Dermatology
College of Medicine
University of Cincinnati