Strong & Pulling Dogs
Firstly, to start reducing pulling, and to protect the neck area, it's important to change the 'pull point', where the lead connects. The most common way, for a dog to be walked, is via the collar, but, if the handler changes the pull point, this can allow for more control.
Walking a dog on a harness is one option, but, for reducing pulling, this may only be suitable for very small dogs.
Our preferred method, is using a Halti, or head collar. By changing the pull point to the head, the handler ultimately has full control. Halti head collars are not designed to be at all restrictive, so the dog has full use of it's head and mouth. We've found much success, when walking dogs on a Halti, even after one session. It does take a few sessions, to get a dog completely comfortable with walking on a Halti, as it is a completely new sensation, but, they're designed to be comfortable, and completely safe, if fitted, and attached correctly. We recommend that owners use a Halti, in conjunction with the link attachment/safety strap, to attach the Halti to the regular collar, for added safety and security. It's completely normal, for the dog to pay attention, and even try to paw at the Halti, when they're adjusting to it, but, with persistence, they will become 100% comfortable with it, and it'll be second nature.
There're many other versions of head collars, but the Halti is one we believe in. Occasionally, some owners choose to use more than one training aid, at the same time. For example, a Halti, and a harness.
It's important to encourage good behaviour, when out walking-sitting at the kerb, before crossing, walking to heal, walking calmly, etc. You may need to use rewards, to encourage your dog.
If at all concerned, please contact your Veterinarian, to ensure that there are no physical health issues. If necessary, contact a professional dog trainer, or behaviourist.