The baby let the bug bite red swelling itch belongs to the insect bite dermatitis, need to take general measures, medication and other ways to deal with. 1. General measures: when the child was found to be bitten by the bugs, you can use water or soapy water to wash the area of the bite, but also can be localized cold compresses in the bite, to a certain extent, can alleviate the redness, swelling, itching and other discomforts. Secondly, parents need to keep the local skin dry and clean, avoid scratching to prevent aggravation of discomfort. 2. medication: secondly, you can use peppermint glycerite lotion under the guidance of the doctor, with anti-itch, astringent effect, children with severe symptoms need to follow the doctor’s instructions to use glucocorticoid cream, such as dinexed, hydrocortisone cream, etc., and may need to comply with the instructions of the use of cetirizine, loratadine and other antihistamines to improve the itching symptoms. Other than that, the symptoms are usually mild and can subside on their own in 7 to 10 days, and the prognosis is good. However, if your baby’s discomfort is more pronounced after being bitten by a bug, you need to go to the hospital and cooperate with your doctor for treatment.