Alright as you know you can get a dog in the game. " Dog Meat"
I accidentily shot him as he had low health...I check him its Full some how...So I let him get attacked i shoot him he regains full HP.

This hasn't stopped working for me it really saves me alot of the time.

Actually all companions heal to full strength after combat. So if your companion has low health, get into a fight with a bloatfly, and he/she will be full health.

Negative.

After almost close to death to a strong creature and during battle shoot him and he revives full HP.

It's not the shooting him part that heals him, it's just the end of that particular battle. But, if that works for you, go for it. Just don't use the MIRV. :chaos:

Thanks. Now I have to go get the MIRV just to shoot a poor puppy bliviongate:
Oh well, I didn't have any other plans today.