Skip to content


    Exciting News for WebMD Members!

    We've been busy behind the scenes building new message boards for you. You'll have new and easier ways to find messages, connect with others, and share your stories.

    And, this will all be available on your smartphone or other mobile device!

    What Do You Need to Do?

    The message board you're used to will be closing in the coming weeks. While many of your boards will be making the move to our new home, your posts will not. Want to keep a discussion going? Save posts you want to continue (this includes your member profile story), so that you can re-post them in the new message boards.

    Keep an eye here and on your email inbox, we'll be back in touch soon to give you all the information you need!

    Yours in health,
    WebMD Message Boards Management

    Includes Expert Content
    Brown spot (sun damage) changed to blister.
    An_249986 posted:
    Brown spot (sun damage) roughly the size of a pencil eraser, that I have had for years on left index finger between finger joint and knuckle that over the last week or two has gone from it's regular light brown color to being reddish, to now a slightly raised blister sensitive to warm and hot water that intermittently itches like a healing wound. It remains the same diameter as the original brown spot. Responds well to Neosporin, seems to help heal, but have not regularly applied it. I am a healthy 53 year old female, with a strong immune system. I do have multiple other brown spots (sun damage) on hands and a few on face that have remained the same over many years. It is winter time where we live, so this flare up is not agitated by more sun exposure.

    Thank You
    Mohiba K Tareen, MD responded:
    Dear An,

    When a sun damage spot changes, we must be concerned that it may be evolving into a precancer or skin cancer. Although likely the blistering is from irritation (sun damage spots have thinner and more fragile skin than normal skin). It is still in your best interest to have your doc or dermatologist evaluate it and perhaps even do a small biopsy.

    I hope that helps
    Dr. Mohiba Tareen
    Tareen Dermatology, Roseville, Minn
    Castle Connoly's America's Top Cosmetic Dermatologists
    Adjunct Assistant Professor Univ of MN Dept of Dermatology

    Featuring Experts

    Mohiba K Tareen, MD is a board certified dermatologist who has an innovative practice in Roseville, Minnesota. Tareen Dermatology ( www.TareenDermato...More

    Helpful Tips

    New to Acne or is it even acne?
    I'm 19 years old. I have never had acne a day in my life. ever. ever ever ever ever. In the past month or less, I have developed small ... More
    Was this Helpful?
    0 of 0 found this helpful

    Related Drug Reviews

    • Drug Name User Reviews

    Report Problems With Your Medications to the FDA

    FDAYou are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.