Sir i am 10 weeks pregnant. Earlier i had DNS which have been operated in 2016. Once i had severe asthma attack.. so doctor prescribed nebuliser for me 3 times a day for 5 consecutive days. After which i have been given levolin inhaler to use whenever i feel shortness of breathe. Now that i m pregnant i m worried of using this. Is it safe to use it? As i m having shortness of breathe specially during night.