Pimples on the face can be seborrheic dermatitis, acne, eczema, folliculitis and other diseases, different stages of the disease can appear different degrees of itching. 1. Seborrheic dermatitis: In case of seborrheic dermatitis, at this time, the abnormal secretion of oil leads to clogged pores and swollen skin, so pimples are formed, accompanied by itching. 2. Acne: Heredity, androgen-induced sebum secretion, keratinization of follicular sebaceous gland ducts, propagation of Propionibacterium acnes, and immune-inflammatory reactions may all lead to the appearance of facial acne. The infection of Propionibacterium acnes can damage the skin, triggering the appearance of pimples, acne, pustules and other damages, accompanied by varying degrees of itching. 3. Eczema: If the skin is irritated by various inflammatory factors, at this time the skin will be red and itchy, and there will also be acne. 4. Folliculitis: when the hair follicles are infected by bacteria and other microorganisms, the follicles will swell, resulting in itchy pimples. Finally, please go to the hospital in time to check the phenomenon of itchy pimples on the face.