In my Experience it is Sinus problem,after a cold I can get this for weeks,my view is I have been successful buying a salt ater spray and using this in both nostrils -instructions are on bottle, I use them daily, this helps against infection and more natural as all other drugs or curs tend to worsen the conditon and believe me I have tried all, but anitbiotics also ruin your natural imune system. if you have anymore questions - I will try to answer. I also use a Medisana medinose plus diod machine which uses light and find that also hleps me a great deal, I use that for five mins every day, but you can use more often when you a problem ongoing.
Water out of the nostril sounds like rhinorrhea (nasal drainage / drip) which is often from a cold.
Browseruk is right, a saline nasal rinse is very helpful in these cases.
iv not had the cold but had a nasil infection bout 4weeks ago it had cleared up but over the past few days iv had water unexpectedly pour from my nose no other symptoms can any1 help me..thanx