Fungal infection starting from vagina.

Fungal infection started in 1st week of January from vagina, spread through inner thighs, lower tummy & butt crack. Almost recovered twice since then, but it relapse without completely getting cured. Relapse always starts from vagina. Used Teczine 10, Candid b, candid v and lulican in this duration as suggested by doctor. Now using Candid since last 3 weeks. Now the itching and redness has started again from vagina. I was Covid positive in the month of September last year, some are saying this is it's after effects. I don't know how to deal with this, it's been more than 2 months it's been treated. Can someone please suggest something about this? This is the third relapse since 3rd January with the medication of Candid being continued. Thanking you in anticipation.