My grand daughter (she has allergies and chronic asthma) takes a Xolair shot once a month. Her first shot was in September. Her pulmonologist said that we should see an improvement in 3-6 months.
Xolair is AWESOME!! I've been on it for about 1 1/2 years and it has truly helped me beyond all expectations. It is expensive, but luckily, my insurance has covered it 100%. I have never had any problems with side effects or anything. I get two shots a month (one in each arm), and since starting the results of my Pulmonary Function Tests have improved dramatically.