About 2 to 10 weeks after the first sore appears, you may develop the following:
If you don’t get treatment right away, your symptoms will go away -- only to come back. This could happen for up to a year. Even if your symptoms don’t return, the infection is still alive in your body. Syphilis will get worse, and you can still infect your sexual partner.
A skin rash that causes small, reddish-brown sores
Sores in your mouth, vagina, or anus
Fever
Swollen glands
Weight loss
Hair loss
Headache
Fatigue
Muscle aches