Hi .. You seem to be suffering from hay fever which includes symptoms like unusual sneezing ,running nose, itchy throat, ears ,eyes and unusual lachrymation that is watery eyes on exposure to certain conditions . Well the treatment for this is only possible after thorough case study and examination of your upper respiratory tract. You hv not mentioned the duration since you've been suffering from this problem. The best advice for you is include plenty of citrus fruits in your diet as they are rich in vitamin c which is the key to healthy mucosal linings of the nose and the respiratory tract. And do visit a good homoeopath to get better solution for your suffering.