There are various reasons for the growth of acne-like material on the areola, which are analyzed as follows: 1. Pink tumors, which are cystic lesions formed by infection of the hair follicles on the areola. It can be washed with warm water and then coated with erythromycin ointment. 2. Montessori nodules, which are normal physiological structures, are raised when stimulated by cold, but are normally closed and open during pregnancy and lactation. 3. Acute mastitis, with burning sensation, swelling and pain on the areola, generalized fever, and increased white blood cells in the routine blood, requires cephalosporins and ornidazole to reduce inflammation, and if there is 4. areola eczema, an inflammatory manifestation of the areola under the action of internal and external factors, resulting in a rash, itching and pain. You can keep your breasts clean and dry, and apply glucocorticoid ointment.