Papular urticaria is a type of allergic reaction, related to direct contact with irritants or insect bites. Generally, it is self-healing, and it can gradually disappear over time. Syphilis is a sexually transmitted disease, usually contracted through unclean sexual contact, and can result in genital ulcers or other more severe symptoms. Papular urticaria and syphilis are unrelated diseases and require separate treatments. It is essential to go to a regular hospital's dermatology department for diagnosis and treatment. For syphilis, attention should be paid to personal dietary and lifestyle habits, and avoid unclean sexual contacts.