Can you Get rid of syphilis without a doctor?

Almost all STDs, with the exception of pubic lice, require a prescription from a health care provider. See your health care provider, department of health, or local family planning office for effective diagnosis and treatment.
You should never attempt to self diagnose or self medicate.

If you feel you have an STI you should seek treatment for it with a clinician.

I would suggest you see a doctor. Any untreated condition could lead to worsening symptoms.