Itchy legs at night with heat, may be related to mite dermatitis, eczema, scabies and other conditions, mite dermatitis, eczema can be prescribed with loratadine tablets, scabies can be treated with sulfur ointment and other drugs. 1. Mite dermatitis: If the bed sheets and bedding have not been cleaned for a long time, there can be mites on them, and the mites can cause itching when they touch the skin. You can wash the bedsheets and bedding and dry them under the sun. Oral desensitizing drugs such as loratadine tablets can be taken as prescribed by the doctor. 2. Eczema: If you have eczema on your legs, you will have itchy symptoms, especially when the itch is aggravated by heat. You can apply glycerine lotion on the itchy area to relieve itching, and take desensitizing drugs such as loratadine tablets orally as prescribed by the doctor. 3. Scabies: If the patient has scabies infection, the itching will be aggravated at night, you can follow the doctor’s instructions to apply sulfur ointment for insecticide treatment. If the legs are hot and itchy at night, it is recommended that the patient seek medical attention to identify the cause and use medication under the guidance of the doctor.