I understand the feeling of wanting to do what you think is best to help someone get better, but curing one condition by possibly causing another is not the way to go about it. And then on top of the possible side effects, as you mentioned with hospitals, you have to wonder if the nurses/doctors take their job 150% seriously. All it would take is one mixed up medical record or a larger dose of something that required and a patient could be in serious danger. I don't know how things are where you live Renata, but I hear all manner of terrible things from my mother about Hospitals. She works in the laboratory, doing the various blood/bodily fluid tests. There are countless nurses here who know the absolute bare minimum in order to get the job that they have.
As for side effects, the best example I can cite when discussing modern medicine is one of the side effects of a popular asthma medication... "shortness of breath". For anyone who may not know, asthma is a condition which causes difficulty breathing. But here we have a "Food & Drug Administration" approved asthma medication with a possible side effect of "shortness of breath". I'm not a doctor, but something seems wrong with that
I've actually had a doctor tell me that trying natural remedies may not be safe.
As I said before tho, I'm not totally against modern medicine. If I had a serious condition that had been proven to be cured my some form of medication, I would definitely take it. But using nasal decongestant spray every time your nose is congested (side effects include dizziness, rapid heart beat), popping a headache pill any time your head hurts (which is nearly always caused by something simple), or using anti-microbial hand sanitizer every time you touch something just sounds like a fast track to a weakened/deficient immune system.