Bitten by mosquitoes may cause insect bite dermatitis, you can use hydrocortisone ointment, boric acid lotion, glycerite lotion and other ointments. 1. Hydrocortisone ointment: is a glucocorticoid ointment, suitable for atopic dermatitis, eczema, neurodermatitis, pruritus, etc., insect bite dermatitis, you can use glucocorticoid medication. Adverse reactions long-term use may cause skin atrophy, capillary dilation, hyperpigmentation and so on. Allergic to the product is prohibited, prohibited from use in skin infectious diseases, such as impetigo, ringworm, jock itch and so on. Precautions: children, pregnant women and lactating women should be used under the guidance of a physician. Not to be used on broken skin. Avoid contact with eyes and other mucous membranes (e.g. mouth, nose, etc.). If there is burning sensation, redness and swelling at the site of application, the medicine should be stopped and the local medicine should be washed off, if necessary, consult a physician. It is not suitable for large area and long-term use. 2. Boric acid solution: is a skin cleanser, with anti-inflammatory swelling antibacterial astringent effect, can be used for secondary infection of redness and swelling or skin erosion, acute dermatitis eczema. It can also be applied to insect bite dermatitis. Adverse reactions: large area damage may cause poisoning, allergic to the drug is prohibited. 3. Glycerite lotion: can be used for acute itchy skin diseases, such as urticaria, prickly heat, insect bite dermatitis and so on. Insect bite dermatitis, if you need to use the drug, it is recommended to use under the guidance of a doctor to avoid abusing the drug themselves.