I have some questions for you.
Does he has intestinal issues ?? Does he react to any food or has known allergies ??
There are two very important things here. We need to discover if he has a hidden intestinal yeast overgrowth causing the immune suppression that doesn’t allow the penis to heal.
One thing that helps is to know about a history of taking antibiotics repeatedly.
Candida persists on the mucosal tissue when the immune system and the antagonistic bacterial flora aren’t controlling it.
There are minor intrinsic immune defects that causes it. However, most cases are caused by an acquired immune problem sometimes caused by the intestinal yeast overgrowth, sometimes caused by immune suppressors such as mercury, sometimes both.
If he has an intestinal yeast overgrowth, it has to be eliminated to cure a persistent intracellular candidiasis. Yeast in the intestines manipulate the immune system suppressing cell-mediated immunity. It means the same organism is what causes the immune suppression one time it growths in the intestines. There are also underlying factors causing it in some cases.
I think any Allergist can test him for Delayed Hypersentivity on skin. This is the most important test in my opinion since it will tell you if he reacts to the antigen or not. If there isn’t reaction, it means the immune system is paralyzed. We expect a reaction to the antigen, an immune response against the offender.
I will check the immune complexes test to see the acceptable ranges.