Fluorouracil
"On day 17 of 25 day Efudex fluorouracil 5% cream treatment on entire face, once a day, in the morning.  Redness started on day 5 and now I am very red, face feels tight and dry.  Some slight itchiness but not too uncomfortable. Bottom lip feels chapped. Face looks awful.  Use cortisone cream at night.  Fair skin, never tan, only sunburn."