Nodule on Lower Lip Presented as First Sign of Syphilis:A Case Report
Syphilis is an infectious disease mainly transmitted through sexual contact.The oral damage of early syphilis is varied,which is easy to be misdiagnosed.Penicillin is the first choice for the treatment of syphilis,but some patients have allergic reactions or other problems,which puts a lot of limitations on the use of it.This article reports a case of syphilis with a nodule as the first sign on the lower lip with penicillin allergy and,who was treated by doxycycline with good effect,aiming to emphasize early detection,diagnosis and treatment of syphilis.