All those things work but it takes time. Don't get discouraged. I wore long sleeves to protect my arms all the time when Piper was little. It takes effort to find a toy that consistently brings teething comfort. Bully sticks and yak cheese were her favorite when she was younger. Diversion from your body and consistent reaction to her biting helps. It will get better. Puppies explore with their mouth. Best of luck with your new sweet baby.
it's been relentless here too ...mostly with my husband who is untrainable who does all the wrong things. the "yelp" method has never worked for me and is, like someone said, too much like a squeeky toy amping up the biting. I'm not a big fan of "no" either finding it useless. At this point I simply and calmly pick her up and put her in her xpen with some chew toys. Works like a charm. She calms down and comes out. Repeat as necessary.
I never quite know what people mean by "biting". All puppies will gnaw when they play. That's not a big deal. Actually biting with an intent to injure is something quite different. From the tone of your post I'm assuming it's the former.
In which case it's time and maybe a pair of gloves. Not sure when you got her but puppies learn to pull their bites between about eight and twelve weeks. The earlier you get them the more you rather than their littermate get to be their learning prop.
My approach is to go with @Zande and understand that it's part of growing up. She'll be finished soon enough and you might even miss those super sharp little puppy teeth.
@morsesa - Why would you say see a Vet? This is a normal puppy doing normal puppy things? Puppy teeth are quite sharp... more like little needles... They learn "bite inhibition" from their Mom or other adults and littermates. Bite to hard, littermates scream and also stop playing... Adults will put a puppy in it's place and refuse to play with that pup. Humans when you bring a puppy home need to do the same. Remember that puppies explore with their mouth.
I'm not a big fan of "no" either finding it useless.
It will be useless until your pup understands what it means and learns to generalize it. Don't use the word when you are not in a position to enforce it. Consistency will teach the pup that "no" means stop what you are doing right now. Dogs are like kids. If they know you aren't going to do anything when you say "no" they learn to ignore you.
The same thing applies to other important words, like "come". Don't use them when you can't get compliance. Your dog needs to learn that certain things are not "optional", so there needs to be consistency until the word is known and responded to reliably.
It will pass. 11 weeks is still very young. My pup's nibbling was particularly bad with my bf and he was starting to get concerned, but it all stopped! I can't remember what age but I think it was after teething finished around 6 mths. I bought anything and everything that was safe and tasty for my pup to chew and also walked away from him if the biting ever got too much. I do believe it will get better in time - keep the faith!
Like much internet advice I find short answers incomplete - and mine was. I really want to ad that making a crate/xpen/gated puppy area should never be seen as "punishment". These partitioned puppy areas should be conditioned to be safe places for a puppy/dog. Mine, thankfully, tolerates and even likes her xpens probably because it's where she eats, receives treats, sleeps, chews and even plays. This took about a week or so. Now she voluntarily goes into her xpens (in my case) on her own and when she's put there involuntarily she might whine for a minute before settling down with a chew and/or going to sleep.