Roughness and redness on both sides of the cheeks in boys may be related to rosacea, atopic dermatitis, acne, and follicular erythema pigmentosum of the face and neck. 1. Rosacea, also known as rosacea, is mainly characterized by red spots and pimples on both sides of the cheeks, accompanied by redness of the nose or dilated capillaries, and the symptoms can be significantly aggravated by elevated temperatures or emotional stress. 2. Allergic dermatitis refers to the allergic reaction that occurs when the facial skin is exposed to certain allergenic substances, which is manifested as rashes, blisters, and itching, and the most common allergens are skin care products or medications. 3. Acne is a chronic inflammatory disease of the skin, mainly manifested as pimples or pustules on the cheeks, forehead, and jaw, and may manifest as redness when the infection is further aggravated. 4. face and neck follicular erythema nigricans is a very rare erythema pigmented skin disease, mainly manifested in the clinic for the face and neck of the border clear reddish-brown patches, local follicular papules can be seen. Due to a variety of causes, the specific circumstances need to ask the doctor for an interview, and follow the doctor’s instructions for treatment.