I've been on Tarceva for a month now without serious side effects. This morning I woke up and I have a bad rash covering the inside of both arms, my hands are both red and somewhat swollen, there are raised welts around my knees and up the back of my legs and buttocks, and the inside of my thighs have welts that are like 5" in diameter. Good grief!
Is this how others of you taking Tarceva have had the rash appear? It seems quick and extreme to me. I have a call into my onc plus have started Doxycycline. Any advice or experience with this would be appreciated while I wait for a call back. My gut is to suspend taking the Tarceva as it seems almost like an allergic reaction. I know the rash is expected, but I didn't expect this.