
Actually, id disagree with that, a harness isnt just for a pulling dog....
Some harnesses are designed to discourage pulling, others are just an alternative to a collar.
It might be worth trying a harness on the pup, id certainly give it a go, she might be associating a collar with pain, so if you switch to a harness, that could solve the problem.
Train her to wear it slowly, just put it on for a few minutes and then reward, play games whilst she is wearing it, dont go straight to attaching a lead.
Em