If water did not come out of the bottle in a steady stream when you gently squeezed it, it is possible that the cap was not tightly sealed. Make sure you tightly seal the cap next time. If air continues to leak from the bottle, please contact customer service to receive a complimentary replacement product.
It is not uncommon for some solution to drip down your throat. You may need to tilt your head forward as well as sideways to avoid this. This may also be due to nasal congestion.