For many years my husband has suffered with a medical condition, unfortunately I can't remember the name and he's not here to ask. The problem is he tends to get blisters on his gum in his mouth and now occasionally on his penis. The doctors/dentist explained that it was a gentic illness and he was prescribed Dapsone Tablets for a couple of years. He stopped taking them around a year ago, but now the problem has started to emerge. The Dapsone Tablets kept the problem at bay a little but it never really cleared up and I was just wondering if you have any other ideas of what it may be.