Erythromycin incubating syphilis. Erythromycin; Herpes simplex; Neuropathy, peripheralSpecific Treatment Incubating Syphilis/Epidemiological Treatment . and then again within 3 to 4 months to exclude the possibility of incubating syphilis. . . . should exercise caution in using azithromycin for treating incubating syphilis or . . . . Regimens for treating gonorrhea that include ceftriaxone or a 7-day course of doxycycline or erythromycin probably cure incubating syphilis. Erythromycin and, mor... more