[TrishB]

The key to the prong collar, as with any training tool, is to use it properly. A prong collar should never be 'slid over' the dogs head - if you can, it's too loose. However, you should be able to slip one finger under it.

Prong collars work in the same way as a bit in a horse. Pressure is applied to request a certain behaviour. Once the behaviour is given, the pressure is released, in praise. If the dog cannot experience the 'release' of pressure, they cannot learn the correct behaviour.

The release of pressure is the reward in this situation. The only time that pressure should be present is when the dog is being asked for a behaviour.

It's a great tool - but it can be harmful if it is not used properly, in educated hands. Even an easy bit on a horse can cut them - if it is used incorrectly. If you're having problems, have your trainer teach you how to use this specific tool.