I have a ring worm from last two year...and have been diagnosed by many but all in vain

Despite being diagnosed and treated by multiple doctors, your persistent ringworm infection over the past two years suggests that the underlying cause might not have been fully addressed; consider consulting a dermatologist for a re-evaluation, as they may recommend additional tests, such as a skin scraping or biopsy, to confirm the diagnosis and identify any underlying conditions, such as a fungal, bacterial, or parasitic infection, and provide targeted treatment, which may include antifungal medications, creams, or ointments.