Thanks for writing to H.C.M. about your query.
As you said you are having running nose like clear water for about one year. You have taken anti allergic spray and tablets but no positive response you got.
Considering your problems and no response to treatment you have taken indicates that we should think about other possibility of watery discharge from nose i.e. C.S.F.Rhinorrhea
. Therefore you are advice for these investigations-
(1) C.T. scan paranasal sinuses
(2) Cytological and biochemical examination of watery nasal discharge.
(3) Culture and sensitivity of nasal discharge.
(4) Skin test for allergy
In this way one can differentiate weather you are having allergic rhinitis
or C.S.F.Rhinorrhea. After confirmation both have their specific protocol for management and they will be followed accordingly.