For nebs we use sterile saline - much easier than preparing sterile water. You want to make sure you use sterile water or saline.

http://www.jrsmedical.com/RESPIRATORY/RESP_IRRIG_SOLUTIONS/HUD20039/product.aspx

When my child was a baby we used liposomal GSH becasue it is liquid. I just squirted inside the cheek with an oral syringe. www.gshnow.com and readisorb.com (about 3/4 teaspoon daily - once in a.m.)

Now (5+ years later!)we use both (oral) caps and lipo - depending on convenience. ((And inhaled also))