Replied by Art (California) on 05/03/2023
Aric,
You can try topical 1% Clotrimazole so see if it is a fungus. If it improves at all it is likely fungal in nature and can be treated as such.
Clotrimazole is available otc at most drugstores such as Walgreen's or Walmart for under $9. House brands seem to be as effective as brand name.
Art