I found using 3% peroxide over the counter from walmart didn't help with my bronchial problem in fact I think it has made it worse. I always get pneumonia for the last 3 years.This year with me doing the home remedies I didn't get it until I had my grandson for a week and he ended up getting it. So immediately I inhaled the peroxide like the post said to do and it made me have a cough attack and my breathing was more constricted. that was 4 weeks ago I did the inhilation 4 times and each time it didn't help I think it made it worse. now I'm still coughing a dry cough like I do after I get pneumonia. Any suggestions? I won't do the inhilation ever again. Every body is different.