I used it last winter when I had Covid. It seemed to assist in keeping the inflammation in check, though I still wound up with some lung damage. Never went to the hospital. No side effects for me. Easy to administer with plastic break open ampules. No resistance in prescribing from my doc or filling by the pharmacy. I feel it should be part of a treatment regime. You get direct application of the medication to the lungs with a nebulizer.
Glad you recovered as well as you did. Sometimes the ventilator does as much damage (intubation scrapes on esophagus) as it helps but most doctors don’t know what else to do.