The red spots at the hair follicles on the legs are mostly considered to be keratosis pilaris, or dermatitis eczema-like diseases caused by allergies. 1. Keratosis pilaris: patients manifested as red spots on the hair follicles in the leg hair area of both legs, mostly caused by genetic factors, called keratosis pilaris. The rash manifests itself as pinhead-sized follicular papules with a sharp tip and a reddish color. It mainly appears on the outer upper arms, back, forearms and buttocks. It can be treated with topical retinoic acid cream to soften the hair follicles under doctor’s guidance. 2. Dermatitis and eczema diseases: due to allergies and other reasons may cause dermatitis and eczema diseases, may appear leg follicles with red spots, at the same time there can be itching, can be under the guidance of the doctor oral antihistamine drugs, such as loratadine. If there are red spots at the hair follicles on the legs, it is recommended to go to the hospital in time, the doctor guided to clarify the cause of the disease and improve the treatment.