I developed a skin condition (during herceptin)that I only recently had diagnosed.It is called "granuloma annulare". I have it on my hands and forearm,but it can develope anywhere. It is believed to affect those with compromised immune systems. I had steroid injections into each lump (minimally painful) and they arefading away.I have seen photos that show it can occur anywhere on the body and sometime in rather large areas. It usually goes away on its own. Because ai work w the publicandmy hands/arm looked so nasty I had the injections an am very happy with the results.
http://www.emedicine.com/emerg/topic753.htm
Marcia