Can the clearing of nasal sinuses be a sign of something bad?

Bear with me, I'm sure that seems like a weird question. For about 10 months, I've had a constantly stuffed up noise, particularly at night. The doctors never found a cause, but antibiotics, decongestants, nasonex didn't help. The other day I developed a fever, and suddenly my nose is cleared and has been for a couple days without exception. Is this normal? Could it mean something is wrong with me?

Can Afrin be after using nasonex?

In reality, should use Neilmed saline sinus rinse first, then nasonex, Afrin should be limited to 3-4 days, you'll be sorry w the rebound. It's also good for nosebleeds...