I have congestion and been sneezing like crazy head feels full now my nose is dropping this clear salty liquid could it be csf leak? Or something else

Rhinitis. Csf leak would be rare, but a viral upper respiratory tract infection or allergic rhinitis are far more likely. To relieve nasal congestion, decongestant nasal spray like Sudafed is effective. Corticosteroid nasal spray relieves allergic rhinitis.