Small red dots behind the ears may be caused by boils, allergies, eczema and other diseases, for boils can be oral amoxicillin, allergies can be oral loratadine, eczema can be used externally with glycerite lotion, etc..
1. Boils: often caused by staphylococcus aureus, hemolytic streptococcus infection, local red spots, swelling and pain, can be applied locally erythromycin ointment or oral amoxicillin, cefoxitin and other anti-infective.
2. Allergy: in contact with pollen, dander, seafood and other substances can cause allergies, red spots behind the ears, severe respiratory difficulties, the first need to terminate the contact, under the guidance of a professional doctor can be oral loratadine, cetirizine and other anti-allergy drugs.
3. Eczema: a multifactorial cause of chronic inflammatory itchy skin disease, can be manifested as red spots, pimples, blisters on the back of the ear, back, lower limb skin, etc., can be localized with glycerine lotion, glucocorticoid ointment, tacrolimus ointment and other treatments.
When red spots appear behind the ear, it is recommended to consult a dermatologist in time and take medication under the guidance of a professional doctor.