Hard red bumps on baby’s legs may be caused by insect bite dermatitis, neurodermatitis or atopic dermatitis, etc. General treatment and medication can be used. 1. Insect bite dermatitis: the above symptoms can occur, mild symptoms of local topical glucocorticoid cream, such as hydrocortisone cream, Dinaid cream, etc., or oral loratadine syrup and other antihistamines; in addition, parents should also pay attention to the baby’s protection to avoid contact with poultry, pets and so on. 2. Neurodermatitis: can also make the baby legs appear a few hard red bumps, at this time the baby should be avoided scratching, wear loose cotton clothes and pants, after bathing, coated with gemstone body lotion, etc.; if necessary, can comply with the doctor’s instructions oral antihistamine such as loratadine syrup, cetirizine drops, calcium, vitamin C, with B vitamins, etc.. 3. atopic dermatitis: can also make the baby legs appear several hard red bumps, daily life in the supplemental food add a small amount of advice, one by one, fully steamed, for a clear allergy to avoid eating food; clothing should be a little thin, cotton texture, loose and soft; living room environment should be cool, ventilated and clean; skin cleaning care, proper bathing, timely use of moisturizers after the bath. Can also follow the doctor’s advice to use boric acid lotion local wet compresses, or local use of hydrocortisone cream, Dinaid cream and other glucocorticoid drugs; if necessary, follow the doctor’s advice to use cetirizine drops and loratadine syrup. There are many other reasons for the appearance of several hard red bumps on the legs of babies, it is recommended to visit the hospital in a timely manner, assessed by a specialist doctor, to clarify the cause of the disease, and then follow the doctor’s instructions on the cause of the symptomatic treatment.