Using diluted apple cider vinegar in foot baths is a home remedy that may help treat foot odor. Although no studies prove its effectiveness, they share that vinegar does possess antimicrobial properties that may help reduce the development of bacteria and fungi.Using diluted apple cider vinegar in foot baths is a home remedy that may help treat foot odor. Although no studies prove its effectiveness, they share that vinegar does possess antimicrobial properties that may help reduce the development of bacteria and fungi.