The best home remedy to treat a foot rash is a diluted household vinegar soak. A diluted vinegar soak is particularly useful when the foot rash occurs due to fungal infection since the acid in it has anti-fungal properties, states MedicineNet.
To make the dilute household vinegar soak, use one part of vinegar in four parts of water and soak the foot in this solution. Soak for a few minutes and then wipe the foot dry, explains MedicineNet.
Other home remedies that can be used to treat foot rash are over-the-counter anti-fungal creams, baking soda, Epsom salt, shampoo and bleach, recommends Xenophilia.
Soaking the feet in a solution of baking soda and Epsom salt or rubbing baking soda powder is effective as these remove excess wetness on the feet, which is often the cause of foot rashes, says Xenophilia. Adding some shampoo and Clorox bleach to a warm water soak is also helpful against foot rash due to fungus growth, reports MedicineNet. In addition, use non-prescription anti-fungal creams such as econazole nitrate, advises HowStuffWorks.
If the foot rash is due to an allergy, the inflammation can be reduced through lukewarm water soaks. Other good home remedies against foot rash include keeping the foot dry, cleaning the gaps between toes with a good soap and wearing absorbent socks to keep the perspiration away, advises HowStuffWorks.