Thank you for the reply.
These lick sores are a challenge and you are correct that if they are allowed to lick them, they will never heal and will only continue to get larger. The only way I have been able to successfully manage them is with bandaging (and antibiotics until they heal.). If a stirrup bandage is placed and the toes left exposed, the dogs seem to tolerate them better and they don't slide off. I am sure that your vet know how to place them, but let me try to explain to you.
You start off with two long strips of tape placed on either side of the affected paw and extending past the end of the paw. It is helpful to use a tongue depressor to stick the free ends of the tape so that they don't get tangled with each other as in this picture.
Once that is in place, use a cotton gauze wrap and start just above the toes to wrap upward until it is past the site of the sore. If the sore is moist, you might want to cover with a telfa pad first. After the sore is adequately covered with a few layers of wrap, don't cut it yet, but gently peel the tape form the stick and fold back over on itself over the wrapped area(so that the sticky side in now facing up) and continue with a few layers of wrap to cover the rolled over tape. This is essentially wrapping the tape stirrup to the wrap and securing the bandage in place without having to tape more of the leg. This pulls on the hair less and is more comfortable for the dog.
If you can keep the bandage clean and dry and keep him from biting it off, it can stay in place until the sore heals, by may need periodic changes. You may need the e-collar to keep him from getting to the bandage, but they generally tolerate these pretty well.
I hope that makes sense.
Please let me know if you have ANY other questions. My goal is to give you 100% satisfaction and if you are not yet satisfied, please reply so I can clarify for you.