antifungal medications such as terbinafine and itraconazole, or topical such as nail paints containing ciclopirox or amorolfine are used and for these you need to consult a dermatologist. Bleach or hydrogen peroxide is used but in dilutional form.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your dermatologist. I sincerely hope that helps. Take care and please do keep me posted on how you are doing.