Infection

[Ahayes]

That doesn't sound like normal gear-related acne. Could be a ton of things, and could be several factors making it worse - exposure to staph/mrsa, using the wrong soap, tight fitting synthetic workout clothes like bike shorts or rashguards, dirty wrestling/bjj mats, shit diet, an allergy...
Send your gear off for testing, but rule out everything else too. Biopsy confirmed fungus or they gave that to you just in case it came back positive?

Confirmed. But I forget the name and medicine. Was three-4 weeks ago. Still lingering

 

[sionnach]

Confirmed. But I forget the name and medicine. Was three-4 weeks ago. Still lingering

Can take a couple weeks to completely heal sores like that even once you knock out the offending organism, but if you keep getting new ones, you need to seek a more experienced dermatologist. I wouldn't pin anything until you get it sorted, that's just me though.