Make a pine sol solution 10-20%. Spray inside the shoes and leave in a sunny dry place or in a warm room. Spray with alcohol after one day inside and outside. Then spary with a alcohol or ether based mens deodarant, deodarant spray should not have solids. Leave to dry for 2-3 day in a warm or sunny room. Attempt to clean and sanitize your feet with the same process minus pine sol...instead use a bezylkonium chloride wash in step one....and step 2 with alcohol right after. Use vinegar dip if your feet are super bad make a 50% vinegar solution with water and drip and scrub your feet for 10 mins 1-2 times daily...use alcohol and ether based deodarant on feet after.