Can I use my cousin's kids nebulizer and medicines on my daughter?

Albuterol administered in a nebulizer will NOT prevent bronchitis. It is also not designed to "loosen up the phelgm" as it doesn't affect the chest. Albuterol is a bronchodilator that relaxes muscles in the airways and increases air flow to the lungs You should never use another person's medications for any reason. Different doses and strengths of medicine are used to treat different conditions. You need to stop giving your daughter breathing treatments since it will not help her and is giving her unnecessary medication. If you don't trust your doctor than get another opinion. Chest congestion for a week is not unusual since many respiratory illnesses take several weeks to clear up. Nebulizer treatments are not appropriate to use for an ordinary respiratory infection, which your daughter has as evidenced by no wheezing sounds. I suggest you return your cousin's nebulizer and Albuterol and listen to your doctor. That's what you pay him for, his training, experience, and knowledge. If you don't trust him find another doctor. Don't play games with your daughter' health.