Honest about the risks, and specific about what prevents each one.
Your own medication being refused at the border
The Government of Canada states you cannot bring a medication classified as a controlled substance into South Korea without an import permit, even with a prescription โ narcotic and psychotropic drugs included โ with approval applied for online in advance through the Ministry of Food and Drug Safety.
Prevention Bring your medication list to the appointment weeks before you fly. Original labelled packaging, hand luggage, a copy of the prescription, and a permit where one is needed. This is the part of the trip we can genuinely take off your hands.
Ticks
The Government of Canada names tick-borne encephalitis as a risk in some areas, highest April to November in forested and hiking areas, with no vaccine available in Canada. CDC advises checking for ticks after being outdoors. Koreaโs hiking culture is superb and it puts a lot of visitors into exactly that habitat.
Prevention Repellent with 20% or more DEET on skin, trousers tucked into socks on trails, and a full tick check โ including the scalp and behind the knees โ at the end of every hiking day. Remove any tick promptly and keep an eye on the site.
Malaria in the far north, in season
CDC puts risk in rural areas in the northern parts of Incheon, Gangwon and Gyeonggi provinces, including the demilitarized zone, from March to December, all of it P. vivax. The Government of Canada calls transmission limited and the risk to travellers very low, and does not recommend medication for most.
Prevention For a short DMZ visit, bite avoidance: repellent, covered arms and legs at dusk. For extended time in the rural north, come and talk it through โ the honest answer depends on how long and how exposed.
Leptospirosis
CDC lists it under avoiding contaminated water and soil, and specifically says to avoid floodwater. Koreaโs summer monsoon brings heavy rain and localised flooding, which is when it matters.
Prevention Cover cuts before going into fresh water. Do not wade through floodwater, and do not swallow river water.
Air quality
Fine dust days are a normal feature of the Korean spring and winter, and they matter most to people with asthma or another chronic lung condition.
Prevention If you use a reliever inhaler, bring it and bring a spare โ do not leave them in checked luggage. Come and see us before you go if your asthma has been unstable; a short written action plan travels well.
Getting care, and paying for it
The Government of Canada says medical services and facilities meet Canadian standards, that private city hospitals and clinics are often better staffed and equipped than public or rural facilities, and that payment is expected at the time of service.
Prevention Travel insurance including medical evacuation, with the policy number saved offline. Carry a payment card that works abroad โ being asked to pay up front is normal there, not a warning sign.
Tuberculosis
CDC lists tuberculosis among infections to avoid by avoiding sick people. The Government of Canada calls the risk low for most travellers, and suggests discussing pre- and post-travel options if you will be visiting higher-risk settings such as prisons, shelters or hospitals.
Prevention Relevant mainly if you are working in health care or similar settings. Tell us if you are, and we will plan around it.