Is it safe to compete with athlete’s foot? I have had a case of athlete’s foot for about a week now. The condition is between my little toe and the one next to it. It was itchy, and created a blister, which has broken. Running short distances (1-2 miles) is not painful. No oozing. I am using vinegar baths and Lotrimin spray to treat. I am preregistered to participate in a sprint triathlon in four days.