The basic kit I carry for Laos:
Disento is an absolute proven winner for an upset tummy every time.
All of the above can be bought at the “right” pharmacy in Chiang Mai, without a prescription. This kit may not be 100% complete, but it has never been seriously tested after numerous trips into Northern Laos, the secret being to stay upright on your machine.
The best two pharmacies in Chiang Mai are Peera and Dara Bhasaj
Dara Bhasaj pharmacy has a huge selection of medicines.
Spare spectacles. I got caught out in Laos in March 2001, when a screw dropped out of my specs frame, a lens popped out & smashed on the asphalt – freaky. The next 4 days riding was somewhat more demanding.
I personally don’t worry about, but your local doctor might say otherwise. Your biggest worry is falling off the bike, patching yourself up and getting to a proper medical facility in time (especially in Laos.).
You can’t protect yourself 100% against the little mozzies, so just do whatever you can – wear long sleeves and long pants, put on your mozzie repellent and have a few whiskies to keep the blighters at bay. There is no one anti-malaria medication that can protect you against all the current strains; and the one evil mozzie that might get you, will probably be the one that you’re not covered for.
Serious riders in S E Asia don’t worry about getting bitten by mozzies; they worry about getting run over by a truck or bus, not by a mozzie.
BIKE MEDICAL KIT
The basic kit I recommend for Laos if going off road & roughing it
Read some more ideas from GT Riders here.