Red, swollen and hard bags on the face may be caused by folliculitis, acne and other reasons. 1. Folliculitis: Folliculitis is an inflammatory skin disease in which the hair follicles are infected by bacteria or fungi, and it occurs on the scalp, face, buttocks, thighs and other parts of the body, manifesting itself in the appearance of red papules or pustules on the skin surface, and when the condition is further aggravated, red hemispherical hard packs will appear. 2. Acne: Acne is a chronic inflammatory disease of the sebaceous glands of the hair follicles and is most common on the face, manifesting itself in the appearance of conical papules and pustules on the surface of the skin, and the further development of the condition may result in the appearance of red, swollen and hardened bumps. There may be other causes of redness and swelling on the face, so it is recommended to go to the hospital in time to improve the examination and give targeted treatment after clarifying the cause of the disease.