Pubic itching, especially at night, should carefully observe the existence of crabs. Pubic lice are often parasitic on the hair shaft, and light brown pubic lice can be seen at the hair root. Sometimes crabs are hidden in a small scab and can move. Small particles can be seen hanging on the hair shaft, and the color is white. This is a louse egg. When the above characteristics are found, it proves that the crab has been infected.

The pubic hair and the hair near the anus must be shaved clean, and then coated with "10% sulfur ointment", and a little more medicine near the anus is the favorite place for crabs to live. The effect is really good. Clothes, bed sheets, underwear, pillowcases and other personal items are all scalded with boiling water for about 30 minutes-1 hour, soaked with diluted 84 disinfectant, then washed and dried. After three days, it almost stopped itching. But sometimes the shaved hair roots will stick to the skin and feel itchy and uncomfortable. Remember to apply some ointment (erythromycin eye ointment) with anti-inflammatory effect.

"Shanghai sulfur soap" is used for bathing, and the effect is not bad.

Transfer to the head with sulfur ointment and Stemona. Apply to scalp and hair roots. Be sure to apply it all over your body. Wrap it in a towel and wrap it in a plastic cap. Don't worry about shaving your hair.

However, using Stemona root sulfur ointment will make the skin a little drier, but this is a trivial matter, and killing insects is the most important thing.