The doctor recommended he get tested for syphilis.
Tips
history
The name 梅毒 literally means "plum poison" because the skin sores resemble plum blossoms. The disease was historically called 杨梅疮 (yángméichuāng, "bayberry sore") in Chinese medical texts.
memory
梅 (plum) + 毒 (poison) = "plum poison" -- the rash looks like plum blossom patterns on the skin.
