Do the lesions itch? Are you allergic to any specific substances? Have you taken any medications for the lesions?
You should keep the areas clean, wear cotton socks to avoid sweating, use a powder to keep the areas dry , use calamine lotion at the sites. Oral antihistamine medications would help if the lesions are itchy.
If your symptoms persist it would be best to consult a skin specialist because nothing can be said with surety without having a look at the lesions.
Let us know about how you are doing and if you have any other doubts.