I caught ring worms from my toddler, i use tee tree oil on it and it looks like i developed a really bad rash, how can i fix this?

Tea Tree Rash: If you have the rash, then stop the tea tree oil! if the rash itches, take an oral antihistamine, take warm water baths with something like aveeno oatmeal (nfi), apply a soothing lotion like calamine lotion, and use a mild soap like cetaphil or dove.

Professional care: You have a parasitic infection that is now irritated. You need to eliminate the parasites and then treat the irritated tissue. Please call a Dermatologist for an appointment before additional home remedies cause additional problems.