You should take the inhalers as required. If you don't have symptoms, then skip using them. I can frequently go several months before I need medications.
Ditto for Colloidal Silver .
I have not found Iodine useful for the lungs. For men, we need Iodine when prostate problems begin. For women, Iodine is critical to prevent problems in the breast, uterus, ovaries & thyroid. I have my wife on an 12mg iodine+selenium pill from Amazon.com. Iodine is also used by our immune system to kill cancers. We cured a woman with terminal cancer in home hospice with iodine.