as the term implies, they just repel mosquito po. as long as you used them and no bites, it work. we use kiele naturals cologne, kahit may aaligid aligid na lamok no bites or di lumalapit ang lamok.
patches help in shooing away din because of strong smell of citronella
as for eradication, make sure walang breeding ground ang mga lamok
use electric swatter din
Meg Lopez