As you have had ringworm for two years despite multiple strong oral antifungal treatments, it is important to see a dermatologist urgently for a skin scraping and culture to confirm the diagnosis and test for antifungal resistance. Until then, avoid taking any more oral medicines and focus on good hygiene, such as keeping the area dry and changing your underwear often. The doctor may then prescribe a new, long-term course or consider a different class of medication.