You can leave the antibiotics at home they are OTC there as is 5mg valium if needed. All the other stuff is reasonable if you plan to hike (day or trip). Consider taking antimalarial 2 weeks before arrival and continue 2 weeks after return. Dengue fever is a concern in that part of the world, but rarely fatal the first time you contract it. make sure to check out Chang Rai and Chang Mai. Have a great time <img src="/images/graemlins/smile.gif" alt="" /> Oh yeah, instead of ready made insect bit preperation. Get some aspirin when you get there. If you get bitten, make a paste out of a couple and apply it to the bite, it helps <img src="/images/graemlins/smile.gif" alt="" />