The 40-year-old German patient went to his doctor after a red spot developed on his nose.
It was then assumed to be a sunburn, and the man was sent home.
But within a few more days, the lesion on his nose began to turn black.
The man soon also found pus-filled sores all over his body, which were particularly severe around his penis and mouth, as reported.
The unnamed man was then tested for monkeypox, and given antivirals to combat the virus. While at the hospital he was also tested for various sexually transmitted illnesses — for the first time, he told doctors — which revealed he also had undiagnosed syphilis and HIV.