Two patients present with leg rashes. One rash developed after a woman started taking cefazolin, and the other featured the deposition of hemosiderin.

Q: I have a bunch of small, rough bumps on my arms and legs. What are they, and how can I get rid of them? Maybe they look like goose bumps — or the skin of a plucked chicken. Perhaps they’re ...

With mosquitoes, chiggers and no-see-ums out and biting people this summer, here's how to tell the difference between the insect bites.