Summer fat people thigh root rubbing red is common in the inter friction rash, due to humidity, friction, mainly to strengthen the care, local treatment. 1. Strengthen care: mainly to strengthen care, should pay attention to the control of indoor temperature, avoid the temperature is too high, in addition to control diet, moderate exercise and other methods to lose weight, reduce friction. To choose loose cotton underwear, keep local cleanliness and hygiene, keep the skin fresh and clean. 2. Local treatment: If it is only simple redness you can apply glycerine lotion to pacify and dry the skin. If the symptoms are more serious and the use of glycerine lotion is not effective, you can also apply glucocorticosteroids, such as hydrocortisone cream and tretinoin cream. Erythromycin ointment and fusidic acid cream are also needed if there is a combination of bacterial infection. The same disease, the patient’s physical condition is different, different stages of the disease, the treatment method is different, it is recommended to consult the doctor in time, under the guidance of the doctor for standardized treatment. All of the above drugs should be used in accordance with the doctor’s instructions, and can not be used blindly by yourself.