Patchy Hair Loss — Is It Fungus?

I have had patchy hair loss for about 9 months or so, I went to a derm, he said it did not appear to be normal male loss, he gave me some shampoo and wanted me to come back in 2 month, I did, he did not see any improvememts, the bald spots still become very red, and burn. I just went to a new derm, he also said the hair loss doesn;t appear to me male pattern, he gave me some foam called olux and said it may be a fungal thing, he said if no new hair growth are seen in the bald patches in 4 week, he wants to do a scalp biopsy, what will this show? I really don’t understand, what things can it biopsy turn up, what conditions could make my hair fall out in patches, also the patches are on the top part of my scalp. thanks you and any info would be helpfull.. thanks again

To answer your question I would be giving you a course in dermatology. To answer your question about the scalp biopsy, I believe he is looking for fungal infections (it would show the actual fungus interacting with the skin), autoimmune diseases (it would show certain primative defensive cells attacking the hair follicles with reactive tissues around it), and the like. It sounds like he knows what he is doing, so stick with him.