The inner thigh root is particularly itchy, may be eczema, ringworm, contact dermatitis, etc., need to be under the guidance of the doctor to carry out targeted treatment, such as drug treatment. 1. Eczema: thigh root eczema and local sweat, friction, drugs, diet and many other factors, the acute phase of the lesions to herpes mound, with a tendency to ooze, the chronic phase to the moss-like changes, easy to recur. Boric acid solution, tretinoin cream, mometasone furoate cream and other topical drugs can be chosen; oral antihistamine drugs such as loratadine, cetirizine and other antihistamines can also be chosen. 2. Ringworm: an infectious disease caused by dermatophytes, can appear ring-shaped erythema, papules and other skin lesions, conscious itching. Generally take topical medicine, such as miconazole nitrate cream, terbinafine cream, clotrimazole ointment and other antifungal drugs; can also choose itraconazole capsules, terbinafine hydrochloride tablets and other drugs taken orally. 3. Contact dermatitis: skin rash with obvious itching caused by contact with sensitizing or irritating objects. The first need to clarify the causative factors and avoid re-exposure, followed by anti-allergy treatment, such as topical glycerite lotion, zinc oxide ointment, etc., can be combined with oral ebastine and other drugs. It is not excluded that other factors cause itching, it is recommended that the patient consult a doctor in a timely manner, by the doctor to clarify the cause, to give targeted treatment, the drug should be used in accordance with the doctor’s instructions, do not blindly self-medication.