I know you have this disease, because I have had it before, the itch is very itchy, so you have to go to the death to scratch, but once scratched, and will be very painful, and will be swollen. The skin will scar and fall off after I break it! Is that so? I'll tell you it's because the underwear is too tight, and when you sweat, it doesn't breathe. The result is that the inside is always moist, long-term moisture will breed a lot of bacteria, coupled with the heat, it has become a breeding ground for bacteria and viruses, personal life and do not pay attention to the underwear did not change in a timely manner on the formation of this disease, the general medicine on the disease can not play a role in the itch at that time a moment to stop the words, and then immediately after a while will begin to flare up, and a scratch the skin on the flow of water, swollen and also very strong. I often apply iodine to sterilize the skin, but after a while the skin starts to fall off! Quite painful and distressing, tell you do not panic, and then itchy must not scratch with your hands, because the hands of more bacteria, you can first use warm water with potassium permanganate wash or soak for 20 minutes, and then be sure to use a dry towel to dry the affected area, and then apply dermatitis ping or skin antiseptic and anti-inflammatory ointment, to maintain personal hygiene, often bathe and change underwear, the key is to keep the affected area dry and air permeable, underwear should not be too small or too tight! The best thing to do during this time is to wear big underwear, keep the affected area not close to the underwear, keep it dry and not hot and humid, as long as the affected area is humid and hot, it will recur! In addition, eat more vitamin B2 and vitamin C, the best like 21 gold vita is good, do not eat too stimulating food, heavy oil, chili, strong tea, coffee, hair food do not use. Adhere to a period of time can be basically cured ~!