A very simple and useful treatment for calluses

Calluses appear due to the thickening of the horned layer of the skin, usually because of pinching shoes.

Treatment: apply a slice of onion on the callus until painful layer strips off, after that keep your feet in warm water, wipe and apply pot marigold ointment.

Effect: the sulphites found in the onion soak the horned layer of the skin, and the ointment contains pot marigold, a miraculous cure for any wound.