Hi there,
to be honest I did not use my nasal spray after surgery, it did not help. But I bought another one (Sudafed) and started using it 4 weeks PO, which helped with the blocked nose. But right after the surgery my nose was sooo swollen inside that the spray did not make any difference whatsoever.
Just give it a try and see for yourself, it won’t hurt I guess
Happy Healing! x