Thanks. To answer your question as following:
1 I believe imuran is main drug. My wife used only Doxepin for 1 and half months, but nothing happened, lips kept peeling. After using imuran about 30 days, her lips had last peeling. After that her lips no more peeling. No moisturizer during treatment. Just use clean water to clean mouth after eating. It took 30~35 days for no more peeling lips. Up today, it been over 60 days, no more peeling lips. She stoped using imuran 2 days ago. Then, we will see what will happen in the future.
I showed all pictures on http://tieba.baidu.com/p/2326518493
you will see everyday's pictures during treatment.