The more you scratch the red rash on the inner thighs, the more you consider that it is caused by eczema, ringworm, hives and other diseases. Patients can use general treatment, medication and other ways of treatment for different causes. 1. Eczema: If eczema leads to more and more red rashes on the inner thighs, it is recommended that patients keep the affected area of the skin clean and dry, and can follow the doctor’s instructions for external use of hydrocortisone cream, tretinoin cream and other glucocorticoid drugs, to play an anti-inflammatory effect. 2. jock itch: jock itch patients thigh inner red rash more and more scratch, should avoid scratching the affected area, can follow the doctor’s prescription external clotrimazole cream, miconazole cream and other imidazole drugs, to play the antifungal effect. 3. Urticaria: If you suffer from urticaria that leads to a red rash on your inner thighs, you can take antihistamines orally, such as cetirizine tablets, diclofenac tadalafil tablets, etc., to play an anti-allergic effect. There are many reasons for the red rash on the inner thighs, so it is recommended that the patient go to the hospital and get a clear picture of the cause of the disease and then follow the doctor’s instructions for symptomatic treatment.