Small red bumps on the hair follicles on the legs may be caused by eczema, folliculitis, perioral keratosis and other diseases. Glucocorticoid drugs, antibiotics, retinoids, etc. can be used under the guidance of a doctor. 1. Eczema: nervousness, allergy, clothing friction can lead to eczema on the legs, red spots, papules, scales and other damage, can be given halometasone ointment, mometasone furoate ointment and other glucocorticosteroid drugs. 2. Folliculitis: Folliculitis is related to bacterial infection, commonly caused by Staphylococcus aureus infection, resulting in inflammation of hair follicles. Fusidic acid, mupirocin ointment can be given to apply, anti-infection treatment. 3. Keratosis Pilaris: Keratosis Pilaris can lead to the appearance of pinpoint-sized follicular papules on the extremities. If there are no symptoms, it can be closely observed. If the symptoms are obvious, use retinoic acid, salicylic acid and urea ointment to apply if necessary. Small red bumps on the leg follicles, and other causes, it is recommended to go to the hospital dermatology department, for the cause of the disease, under the guidance of the doctor to use medication.