Is it a sexually transmitted disease that causes erythema on the glans after taking cold medicine?

　　eat cold What causes erythema on the glans penis? sexually transmitted diseases ? Mr. Chen recently discovered red spots and blisters on his glans penis. So come Hospital examine. After examination, I found a round patch about the size of a penny on his glans, with a purple-red center and several blisters on it. The surrounding area was slightly red and the borders were neat. It didn’t look like genital herpes, but more like a rash caused by drugs.

　　So, I asked him if he had taken any medicine recently. He said he had taken cold medicine two days ago. After hearing this, I basically confirmed my initial judgment. I comforted him and said, "What you have is a fixed drug eruption, not a sexually transmitted disease. As long as you stop taking the cold medicine, the rash will go away. To be on the safe side, it is recommended that you do some STD tests to confirm the diagnosis. ”

　　The rash shape of fixed drug eruption is indeed similar to that of many sexually transmitted diseases, and it is easily misunderstood by laypeople. For example, the chancre of primary syphilis appears as soybean-sized erosive papules on the external genitalia, genital herpes appears as red spots with many tiny blisters, and the fixed drug eruption that occurs on the genitals appears as purple-red edematous plaques, which may have erosions and blisters. The appearance is almost the same as that of these two sexually transmitted diseases.

　　Before I could finish speaking, he was so happy that he immediately took out his cell phone and called his wife. But there was a loud yelling on the other end of the phone, saying that this was a lie. In desperation, he gave me his phone and begged me to tell his wife personally to prove his innocence.

　　I hesitated for a while and finally picked up the phone. But before I could say a few words, the other end of the phone yelled at me: "You men are not good people. You worked together to deceive me. Why didn't he want me to accompany him when he went to the doctor?" I felt helpless after being scolded for being innocent. But then again,