The prophet taught his companions and Muslims in general to wash their different body parts that are exposed to pollution such as the face, mouth, nose, hands and feet five times per day or more for prayers, and washing the whole body frequently as much as possible.

He warned people not to contaminate the areas near residential places or houses He taught his followers "medical isolation"; he commanded them not to enter the places affected by epidemic diseases and not to leave it in order to prevent the spread of diseases. He liked good smells very much, and he used to wear perfumes and he never smelled bad.