Jarisch-Herxheimer reaction in syphilis.

Jarisch-Herxheimer reaction (JHR) is a focal, local, or systemic reaction, which follows the first dose of antisyphilitic remedy. JHR is a self-limiting reaction. The appearance of secondary syphilitic rashes following injection of benzathine penicillin was not so common nowadays to meet with JHR. Rashes were resolved completely a week after the injection. This case was reported to alert the physicians about the appearance of secondary syphilitic rashes following the antisyphilitic treatment which could be confused with hypersensitive reactions of penicillin.