answered question 1/22/2009 My Cat Has Ringworm. We Are Treating Him With Antifungal Cream And A Wash Twice A Week. He Gets Better We Let Him Out Of Quarantine Then Another Lesion Shows Us. Is He Contagious All This Time? Is There Something Else We Should Do? Are you putting the fungal cream on everyday? All 5 of my cats had it and it took about 2-3 weeks of continual treatment to finally get rid of. Make sure your house is sprayer with Lysol,anything your cat touches. Good luck!