Hi, Welcome to Health care magic forum.
Bleeding for 21 days, means it is to be considered, and consulted.I advise you to consult a gynecologist for diagnosis and treatment. You may need to have an M.R.I. for diagnosis.
I usually prescribe to my patient with such symptoms fluconazole
Take more of green leafy vegetables, pulses, sprouts, and protein rich foods to have good health and resistance against infections.
Wishing for a quick and complete recovery. Thank you.