Collins said: “We’re encouraging people to plan for their health.”
He said steps that could be taken included “remembering that local pharmacies can help with many common conditions through the Pharmacy First, external service”.
The NHS added that people should use those services for advice and treatment for common conditions which included sore throats, earache, sinusitis, infected insect bites and urinary tract infections.
NHS Cornwall said people heading to the region should pack a small “holiday health kit” with simple first‑aid items such as pain relief, plasters and antiseptic wipes and sun cream.
It also urged people to check in on vulnerable family members, friends or neighbours to make sure medicine cabinets were stocked.
The NHS added in a life-threatening emergency such as “someone who is unconscious, struggling to breathe, having a severe allergic reaction, experiencing a seizure for the first time or suffering serious injury or bleeding”, people should “always call 999”.
It said for urgent medical advice or for those who were unsure which service they should use, people should visit NHS 111, external online or call 111.