Recently Answered Questions on Oxypur

I live in a PG in hyd, my surrounding is full of dust and pollution. I go daily to office by that way only and I'm allergic to dust. Currently I'm having Defcort6, Montewok-lc and oxypur as prescribed by doctor. It help reducing the problem but I want permanent solution as we can't stay away from dust and also I don't want to have medicine for so long. Please suggest something.