Many of us will need to do this at some point, due to a sick dog with diarrhoea, for example. It's important to syringe correctly, because a dog can actually 'dry drown' if the water is sent down the windpipe into the lungs, rather than swallowed.
Don't use force on the plunger and don't stick the syringe straight into the mouth -- and don't tilt the dog's head back. You want to open the side of the mouth to create a little pouch between the outside of the teeth an the cheek and then gently push the plunger to let the water out. If there's a lot of water in the syringe then you'll need to do several small presses at a time to let the dog swallow and breathe. Keep the head level as tilting it increases the chance that it goes down the wrong way.
Here's a helpful explanation with pictures:
http://www.vetmed.wsu.edu/cliented/dog_oral_fluids.aspx
Don't use force on the plunger and don't stick the syringe straight into the mouth -- and don't tilt the dog's head back. You want to open the side of the mouth to create a little pouch between the outside of the teeth an the cheek and then gently push the plunger to let the water out. If there's a lot of water in the syringe then you'll need to do several small presses at a time to let the dog swallow and breathe. Keep the head level as tilting it increases the chance that it goes down the wrong way.
Here's a helpful explanation with pictures:
http://www.vetmed.wsu.edu/cliented/dog_oral_fluids.aspx