you are having dry irritating cough
, watering left eye, left sided earache.Probably you are having some infection in your nose which is blocking nasolacrimal duct
(small duct which connect eye to nose),leading to flow of tear from eye, similarly infection of throat causes obstruction of eustechian tube (small tube which connect throat to ear),leads earache of affected side. thus complete examination of nose throate is must. CT Scan
of paranasal sinuses
may be helpful.