Purulent discharge at the external opening of the penis urethra, especially the cow yellow thick pus, is generally considered to be urethritis, and it is basically Lingbi with pain and frequent urination. These people often have a dirty sexual life history before, and do not take a condom for treatment. The first choice is to use antibiotics, ceftriaxone, also known as ringworm treatment. Generally, an injection is enough, Oral antibiotics can choose levofloxacin. In addition, you should drink more water and not eat spicy and irritant food.