Dear Dr. Walt,
I unknowingly tangled with poison ivy, poison oak, or poison sumac – not sure which. Anyway, I developed blisters and rashes that seem deep, as they appear to have gone well below the top layer of skin. I didn’t bother with calamine lotion to deal with itching, but I still have dark red marks weeks later, and I’m starting to wonder if they might leave permanent scars. Is there something I can put on them now to help speed the healing and remove the dark red marks?
—Marked Skin in Maryland Continue reading