Be very careful if it comes out in your mouth, you are infected
Cold Sores: Causes, Symptoms, and Treatment Cold sores, caused mainly by HSV-1, are contagious blisters often spread through direct contact. Symptoms include tingling, blisters, and scabbing, typically lasting 7–10 days. Triggers include stress, illness, sun exposure, and hormonal changes. While there’s no cure, antiviral meds and creams can ease outbreaks. Prevention includes avoiding contact during…