L.B.
Hi T., My daughter had the same problem. THe smell was HORRID!!! What I tried and has seemd to help was, soak her feet in warm water with 4-5 tea bags. Sounds strange, but it totally worked for my girl. I justed used hot tap water, added the tea bags, let it steep for a couple minutes then had her saok her feet for 20-30 min for 5 days. I also washed her sneakers and tried to get her to wear a different pair of shoes every day, or at least rotate them out to give shoe a chance to dry out. Also, for ssanle wearing, get a spritzer bottle and put rubbing alcohaol in it and spritz her feet, let it dry before she puts her sandles on. Hope it helps. It did for us.
L.