How many shots are needed to treat syphilis

Treatment for syphilis usually requires three injections, with additional courses if necessary.
Currently, the preferred treatment for syphilis is long-acting penicillin, also known as benzylpenicillin, which is administered once a week, with one shot of benzylpenicillin 2.4 million U each time, for a total of three consecutive weeks.
After the treatment, the change of syphilis titer and the progress of the disease will be reviewed to judge the efficacy of the treatment, if there is an increase in titer or the disease has worsened, it may be necessary to add an additional course of treatment or change to another treatment plan.
A small number of patients with penicillin allergy may require ceftriaxone once daily for 14 days. It may also be treated with oral medications such as doxycycline.
Treatment of syphilis, especially the need for injectable drugs, is the need to be carried out in a regular professional hospital, antibiotic drugs may be allergic to the situation, need to be closely observed.