Please visit a dermatologist near you. A ring worm is a fungal infection which can be completely cured by antifungal treatment. Fungal infections are common in areas where sweat collects. Ring guard contains a mixture of medicines including a steroid so that you get relief from itching. But steroids can make the infection spread even though the itching seems better. Long term steroid use can damage your skin and make the fungus resistant to regular antifungals. Warm regards. Dr. Rajdeep Mysore. Chirag Hospital Bangalore