Thigh root itching is common in eczema, contact dermatitis, scabies, etc., according to the cause of the use of glycerine lotion, zinc oxide ointment, dexamethasone cream and so on as prescribed by the doctor. 1. Eczema: local use of glycerine lotion, zinc oxide paste, etc. to stop itching, and according to the condition of the use of dexamethasone cream and other glucocorticoid preparations for treatment. 2. Contact dermatitis: in the acute stage, you can also choose to use glycerine lotion, zinc oxide paste to stop itching and glucocorticoid creams such as Eloxon cream anti-inflammatory treatment. 3. Scabies: 10% sulfur ointment, 3% salicylic acid ointment, 40% sodium thiosulfate can be used for treatment. 4. Infection: when there is an infection, it can also be treated with mupirocin ointment and so on. Thigh root itch may also have other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment, do not self-medication.