 [ Symptoms ] can trichomoniasis live outside of the body for example in vasiline used as lubricant  i ask because of reinfection [ Disease ] trichomoniasis is a living parasite that requires a host human it will not survive in vaseline or other lubricant re infection may be from the same original source another human  sexual partner who has not be treated or the reinfection may represent a failed treatment so you will need to be treated again