My mother has been receiving Tarceva for two months now. After the first 2 weeks she developed a terrible rash that stopped her even from sleeping well in the evenings and was unbearable during the day. She tried many things that doctors suggested and all failed. By pure chance she tried a cream that is called Bepanthol (Roche) and the next day the rash dissapeared and until now never came back. Please forward this info to anyone that you know that is receiving Tarceva.