Hi Dr.,

I'm 23. About 10 days ago I went kayaking and ended up with a really bad sunburn on my legs. They stung for about 4 days, and then when I started working out, I'd get blisters. They feel fine now, except they are peeling and itchy (which I assume is normal). However, when I cross my legs, the leg underneath begins to turn purple around my knee/thigh area. Is this a cause for concern? This has never happened to me before.