Eight months baby mouth repeatedly long eczema ulcers, usually belongs to the perioral eczema, can be through the removal of triggers, home care, topical medication and other ways to alleviate. 1. Remove triggers: repeated eczema and ulcers around the mouth, we should promptly understand the triggers, whether there are irritating food residues, whether good drooling, etc., for the allergens that have been clarified, should be avoided to re-exposure, to prevent the recurrence of symptoms of perioral eczema. 2. Family care: If the child is breastfeeding, nursing mothers should pay attention to a light, balanced diet, avoid spicy and stimulating foods, and at the same time pay more attention to the eight-month-old baby’s perioral parts of the cleanliness, care, diligently wipe the saliva, clean up food and breast milk residues. 3. topical drugs: for 8 months baby medication must follow the doctor’s instructions, can cooperate with the doctor to choose the boric acid solution cold wet compresses treatment, if necessary, you can also apply hydrocortisone butyrate ointment, to play anti-inflammatory and anti-itching effect. If secondary bacterial infection, can apply erythromycin ointment treatment. The use of the above drugs must be applied under the guidance of a professional physician, so as not to blindly use drugs and produce adverse effects.