2 months baby face long red rash may be eczema, contact dermatitis, prickly heat and other diseases caused by the cause of the disease should be selected for the appropriate treatment, such as general treatment, medication and so on. 1. eczema: 2 months baby face red rash if eczema caused, first of all to keep the local skin clean, parents can be under the guidance of the doctor to the child with 3% boric acid solution or 0.1% ibuprofen solution cold wet compress disinfection, anti-inflammatory, astringent, oozing reduced glucocorticosteroid creams, can alleviate the condition. 2. Contact dermatitis: If contact dermatitis causes a red rash on the face of a 2-month-old baby, the first thing to do is to clarify the cause of the disease and avoid re-exposure. Then follow the doctor’s instructions for topical glucocorticoid treatment, such as dexamethasone, hydrocortisone, etc., with anti-inflammatory effect. 3. prickly heat: 2 months baby face rash may also be prickly heat, usually caused by environmental heat and humidity, first of all, to keep the child’s local skin cool and dry, can be applied with topical glycerite to reduce itching. All of the above drugs should be used under the guidance of a doctor, do not self-medicate. Parents should take their children to the doctor for a clear diagnosis and symptomatic treatment if they find that their 2-month-old baby has a red rash on his face.