Before going to SE Asia, I remember taking a pill that my mother had to crush up in my food (I wasn't able to swallow it but, then again, I was 6). I think it was a pill to prevent malaria but I'm not sure.
I lived in Japan while I was younger so it was easier to travel around Asia when I was younger. I've been to South Korea, Hong Kong, Japan (of course), Malaysia, Korea, Thailand, Singapore, and Indonesia. My passport was filled by the time I was 10. Too bad I can't get past page 2 of my new passport.