After being bitten by fleas, patients can use topical glucocorticoid drugs, such as halometasone and clobetasol propionate, to stop the itching. If the patient is inadvertently bitten by fleas, itching occurs. Topical glucocorticosteroids such as halometasone, clobetasol propionate, dexamethasone, etc. can be used under the guidance of a doctor to play an anti-inflammatory and anti-itching role. If the patient’s itching symptoms are significant, it can also be combined with oral antihistamine drugs, common drugs such as loratadine and cetirizine. Patients in the drug treatment period, should also keep the local skin clean and dry, avoid scratching the lesions, so as to avoid secondary infection. Insect bites should be prevented on a daily basis. Patients who experience discomfort during treatment should seek prompt medical attention.