Than go and find out more. Ask Narvin, I'm sure he'll love to talk to you about us. [He can't be bothered lecturing some alien.]

You don't die from a common cold, not usually. And the infirmary, I would hope, takes precautions against that. I've been there with broken wrists for three days and nothing happened, I doubt fetching some cold medicine and getting a routine check will harm you. ...Unless the doctor's try to hurt you.