hello Thanks for your query. You were probably given penicillin as an antibiotic against syphilis Once the disease is cured, the TPHA would become negative. Please upload the entire report for me to be able to interpret it correctly. Antibiotics are the best possible treatment against the infection. Please repeat the test after 6 weeks to confirm. Avoid sexual exposure in the meantime, or make sure it is protected, as syphilis is sexually transmitted. All the best.