I have had 3 boils in past 3 weeks..and i also had antibiotics but no difference is there..it isn't about hygiene, that i know for sure..what's night ?

Night: Night noun \ˈnīt\ 1) the time from dusk to dawn when no sunlight is visible But you probably knew that already. As to your boils- it is hard to say without knowing were they are and how large but antibiotics don't usually treat boils. They need to be drained. I suggest you have your doctor look at them.

See allergist: Assuming that the bacteria was identified ( culture?) and the infection is not from MRSA and the right abx was given, you may have an immune defect. Consult an allergist/immunologist.