What do i do about moskito bites?

Hi i'm going to bangladesh next week and one of the things i'm really scared of is moskito bites. I've been to bangladesh before and i had loads of moskito bites and about 3 or 4 of them started getting infected and burst. After 6 years later i've still got the mark of them infected moskito bites. so this time if i get a moskito bite, what is the best thing for me to do?