 [ Symptoms ] how many hours into cold or flu can we infect others is it safe to say that after 48 hrs we do not have to worry  this is an unusual coldflu that puts you in bed for the first 2 days and then your energy is zapped i do not want to give it to my grandchild how long do i need to wait  is it possible for family members to keep passing it back & forth to each other for weeks [ Disease ] i think you need to be checked for oral std if there is no progression with antibiotics your stomach bloating and watery mouth may also indicate reflux laryngitis have you oral sex done is there any vaginal symptoms