It could take a couple of days to weeks to recover complete sensation. If sensation does not come back after say 2 weeks, you can then consult with an ENT specialist
so he can evaluate and find out if the sinusitis
did not result to a nasal damage that will need to be corrected by either medication or surgery.
You can take nasal steroid
spray or antihistamine which could either help for the inflammation and the suff/congestive nostril
I suggest you give a couple of days before you can check on a doctor.
Hope this helps