Anti malarial meds? I use Malarone as I'm only ever in the tropics for a few days at a time and usually have to travel at relatively short notice. Malarone can be taken 48 hours before travel, one pill per day, before you go, whilst in country, and taken in the same dosage for one week after your return. Other meds are better but you need to be taking them for a much longer period prior to travel and after, plus there's more serious side effects. It's not cheap but to travel to these places without med cover, is rather stupid, once you've seen a case of serious malaria you'll understand that you really don't want it.
Has to be noted that meds aren't 100% effective so you have to actively avoid being bitten. Still, if you do cop a dose the meds help to reduce the potential seriousness of the affects making it much easier to treat and less likely that you'll get it in the brain, which is potentially lethal.
I use deet repellents routinely, "jungle formula tropical #4", so I avoid putting it directly on my skin if I can. The most likely place to be bit in an semi-urban tropical environment is on the ankles, so wear shoes longish socks and long trousers, spray the deet on the outside of the socks. If I have to, if I'm caught out, I treat my wrists back of my hands neck behind and on my ears, but then I always always wear a long sleeve shirt and a hat. Mozzies can bite through most clothing but unless your spending long periods in the bush it more likely the attack will come from floor level.
Keeping the window of ones room shut and the light off at night helps, as does a mozzie net (but not always available or practical as you need to be able to hang it). If you have power in the room a plugin eucalyptus based repellent will help, battery powered versions are available too, if there's aircon, crank it as low as it'll go, that helps as well. **Don't under estimate the seriousness of malaria**