Penis fungus problem, male circumcised since Sept 2019

Circumcised in September 2019, I have since healed well, and all was well. But since mid-December I have small red dots in places that come and talk on the exposed part under the crown (soft skin of the foreskin along the penis! I suspected a mycosis so I treated 1 week canestein? Then continue 3 days after the end to ensure the end of the contamination. 5 days later small red pimples came back. I have started canesten again since Thursday but the red spots are still there. I have been tested for everything... everything is negative. (Vih, syphilis, clamidya, ghonorrhea, hepatitis a-b) I have adapted my underwear to cotton and I only use soaps without perfume... same thing for the washing. I am at the end of my rope but I have only treated with canestein, would another treatment be viable? (Example of a bacterial mycosis)