"Several months after my diagnosis, my rapid test result is positive. Am I really positive/contagious?"

It is possible that a rapid test may still detect old particles of the virus, or it could indicate a reinfection. It is generally not recommended to take a COVID test 3 months after an initial episode for this reason. It is important to check the specific requirements for travel to the United States, as a COVID test may not be necessary but proof of vaccination may be required. Pharmacists typically cannot provide certificates of infection.