Hi, when I was first introduced to Tarceva, I had pimples with yellow puss inside. I dab it with hot (as much as you can tolerate it) clean face cloth till it burst.. it will bleed for a second then it stopped. It worked for me. I didn't have to use any cream or medication for it.
I had these pimples on and off for two months.. now I don't get it anymore.
I am on Tarceva for two years and still taking it now and have been doing well
I found when I eat nuts eg.. peanuts, almonds, cashews I get more pimples. Try to watch what you eat because food can react to any kind of medications. Good luck.