Beth
                    
                    
                    
                    
                    
                    
                    
                        
                        
                        Both my sister (53) and I (45) both have been diagnosed with  Sweet Syndrome. Interestingly enough, I had outbreaks for about 10  years off and on and dermatologists gave me about 10 diagnosis..but when  my sister got it...her doctor had one of the sores biopsied. Later, so did  I and they both were diagnosed. Neither of us have leukemia..Check with the   NORD National Organization for Rare Disorders...they have some info. We suspect  that our hormones are what triggers episodes...altho we both have minor other  problems that are the same...fatigue, 25 lbs overweight, suspected thyroid trouble  (altho nothing shows up on tests) fibromyalgia, etc. But we are both basically  healthy..we've been anemic before but nothing more serious. To control the  blisters (we call ourselves the Blister Sisters)....we take DAPZONE and it works.  I've been on it for about 2 years.....ever since my hysterectomy. Within 1 day of  having a hysterectomy....I had about 40 blisters everywhere....the Dapzone conrols  the outbreaks....and has caused no other trouble. There aren't many people we've  found that have Sweets and I think most of them are women. Feel free to  email us. Did your dad have thyroid trouble by chance?