My baby normally congested, blocked nose. I use sterimar since bb less than one month old, now she is 3mo i am still using it. It is really helpful. How i do : Sit baby upright or 30 degree and before spray ensure to close their eyes and mouth. After spray normally baby will cry so i will stand and she is still in upright position and tadaa less than 30 secs the boogers and mucus come out of her nose
before first use shake bottle and spray abit into the air, subsequent use just need spray abit out,, i used on my less than 1 month baby cuz she had blocked nose, i sprayed into her nose while holding her up in sitting position,, i use only when can hear her nose blocked but can use anytime tbh
Basically you would want to use sterimar when your LO sounds stuffy, sit him/ her upright spray one nose at a time. Then suck out mucus with nasal aspirator