Time For Research

Hello everyone!
It's been awhile since my last update, a lot has gone on in the last month. I competed at first competition as a blue belt, earned my yellow belt in Goshin Japanese Jiu-Jitsu, and attended a seminar where I met and made new friends, some of which reminded me how small the world really is. Now it's time to get back to planning this awesome journey! I've decided to pick one of the topics and focus on that for a month or so before moving to the next. First up, health and safety.
My biggest fear is getting ring worm or staph while traveling, having never contracted either so far (knock on wood) I'd like to keep that track record going and not have to deal with it for the first time while out on the road. I've read a lot of great reviews about different 'gi' or 'defence' soaps and sprays helping protect from infection but I don't know if they'll always be available while traveling and quite honestly I'll be on a tight budget and those things tend to a little pricey. One aspect I could really use tips and help in is finding how to make sure cuts or scratches from training are contained or covered to not get infected. would just having sports tape be ok? is that even readily available and cheap? This area really makes me feel like I'm totally lost, its not something I've really thought about before having always been good about showering and cleaning my gis.
Also, knowing the best way for a traveling person to make sure they're protected like having travel insurance, the proper shots etc. would also be beneficial. Given that I'll be moving around a lot for an extended time I imagine that I'll have to update my insurance as I move from country to country? As for shots I guess that's something I'll have to talk to a doctor about, like if I get what ever I need all before leaving or if I'll have keep updated as I move. With my work we make sure to get all the necessary shots before traveling.
Any tips on what to be careful of while traveling, like drinking water etc. or be prepared for dealing with different services in certain countries would also be appreciated. Just being ready to stay safe not be sick or know what to do if worse case comes up while traveling is the goal. Now time to get researching!