Hm yea honestly that’s just something you get used to. Every time I go back I get so many bug bites. If you’re gonna be in San José then just wear a lot of repellent. But if you’re going to be in the rainforest or by the beaches (like Puntarenas, Guanacaste or Limón) then get these stickers you can wear on your clothes. I went to Panama for a research trip and they were a life saver !