Keratosis
"I was experiencing pain in my stomach and upper abdomen after about a month of using Solaraze twice per day (was prescribed for three months).  Had to have an upper endoscopy to find the cause of my symptoms.  I had burns to my lower esphagus and mild stomach bleeding. My doctor told me that a side effect of this medication (ointment applied to the skin on my face) can destroy the mucus lining in the stomach.  Use with extreme caution!"