Pimples on the right eyebrow may be caused by acne, folliculitis, viral warts, contact dermatitis and other diseases. 1. Acne: It is related to the exuberant secretion of androgen, the increase of oily secretion of hair follicles, as well as the keratinization of hair follicles and the propagation of Propionibacterium, which may cause pimples on the right eyebrow. 2. Folliculitis: Bacterial infections cause purulent infections of the sebaceous glandular tissues of the hair follicles, which can also cause pimples on the right eyebrow. 3. Viral warts: Flat warts and common warts caused by human papilloma virus infection may also lead to pimples on the right eyebrow. 4. contact dermatitis: the skin contact with the allergic reaction caused by the sensitizer, may also cause the right eyebrow acne. There may be other causes of acne on the right eyebrow, you should go to the hospital in time to check, clear the cause of the disease in the doctor’s guidance under the standard treatment.