My DD (18 months) has had ringworm on her head since March! We’ve been treating with creams, using an anti dandruff shampoo, changing bedding, towels etc but it’s not going. Web thought it had gone about a month ago but it’s now spread further across her head and to myself and my husband. The dr just says keep applying the cream and that it can take a while to get rid of, but this is months!
Is it usual to take this long? Any advice please 
Thank you