Each rug requires special instructions when spot treating which depend on the materials used to make the item. Typically, wool area rugs require soiled areas to be spot treated only and the rug to be professionally cleaned.
Machine made rugs can be spot treated at home or washed using mild soap and water. Always let the rug dry in the sun.
Specialty rugs such as sheepskin rugs and shag rugs should only be professionally cleaned, unless otherwise stated.