Hugs, affection, laughter and reliable support are always my first medicine. Anything beyond that and I put my faith in science and medicine to both cure and use preventative medicine.
Given that when a word is said all versions of that word are "pinged" in the brain before the correct one is selected, we must be careful with words that have powerful double definitions. As such, "Getting the shot," as in a vaccine, is almost indistinguishable to the brain as, Getting shot." In violent countries, especially those with high gun crime, this is a very problematic word choice. The word choice itself does not govern behaviour, yet acts a catalyst for certain behavioural responses by triggering different parts of the brain. Thus "shot" and "jab" would be better replaced by "protection" or "medicine."