Help with my puppy-please!!!?

Hi,
Ok i asked a few weeks back about helping to stop my puppy biting, and genuinely i have tried everything and nothing works.
Anybody I know that has a dog, and that has met mine, has said theirs was never this bad and im really concerned there could be a problem.
if you stroke or rub him, h ebites really hard on your hands arms whatever.
You walk with him he bites your legs/trousers/lead..
Ive treid so many things and just eneded up bruised and marked e.g ignoring him, pulling him off bt the scruff of his neck, holding him to the ground, shouting, slapping(not hard), leaving him in a small room on his own-everything and nothing is working.
Im beginning to think he has some form of ADHD(if that can happen to a dog)or something really wrong.
Please help, at this stage im even considering getting rid of him as i cant handle him, and i really dont want to do that..
thanks
xx

My puppy is 4 months and i got him at 8 weeks old.

All puppies bite - when they play with their litter mates and mother they do bite each other fairly hard, and he just needs to learn that he can't bite us fragile humans the same way! None of the things you have said you have tried is anything I would recommend - you are meeting play aggression with real aggression, and I'm not surprised your pup is still biting you.

Keep calm, and put the pup down when he tries to bite, with a firm 'no' - then walk away. If this doesn't do it, try having a spray bottle of water with you, a firm 'no' then a quick squirt with this will soon make him back off. Give him lots of chew toys/ropes to play with, and actually play with him - have a tug of war (just make sure you win, eventually), and let him work off his play energy in constructive ways. He will need to bite and chew at things as he loses his baby teeth - just channel it to a more sensible object than you.

You may have a fairly dominant pup here, but this is all the more reason to let him know that you are in charge - not through physical violence or shouting, but with calm, authoritative moves and voice. You can try the Cesar Milan bite hold - where you hold the back of the neck firmly as though an adult dog biting a pup to correct it - you don't need to hold hard, just firmly - this has worked well on a couple of my dogs - they've been on their backs, belly showing in seconds, but without being frightened. Ask a dog trainer for help if you still struggle - this is nothing they wont have come across before - you are not alone in having a pup like this, and people have rosy memories of their own dog's puppyhood - so take their memories with a pinch of salt...

A number of those tricks will work just fine but the most important thing is consistancy. Whichever method you use make sure you keep doing it so the dog will recognize this particular action with that particular punnishment. One thing that I find works, and effects the dog in a natural and psychological way, by forcing the dog on his back and making it stay there in a submissive pose helps it recognize it's place in the chain of command. Be the "Alpha Dog" :-)

Find yourself from help from an experienced trainer:
http://www.apdt.co.uk/local_dog_trainers...
It takes more than a few weeks to train a puppy not to bite and you are trying too many different methods too quickly.
He does not have ADHD, he just hasn't cottoned on to what you are trying to do. All the physical things you have done - scruffing, holding him down, slapping - are just getting him more & more excited.
Get an experienced trainer to help you instead of asking on here - no one can see your dog and shouldn't be offering advice without more information .

Its a puppy! All puppies do this. Just try to avoid situations where he will bite you as best you can. I guarantee one day soon you are just going to realize that the biting is slowing down or actually stopped. It just takes a little time. Be patient and stop yelling and slapping him. He'll be fine. Unless your dog is a pitbull. Then he is probably trying to kill you.