Just back from holiday a week ago with our 8 month old Staffie, on the first day we took her on the beach and she had a fabulous time running for her ball in and out of the sea :) However when she runs to get the ball she tends to sort of do a sliding tackle to get it and the next morning she could hardly walk! We looked at her paws and every one was sore, looked like deroofed blisters or friction burns, also some of her claws had worn down to the quick :( She was a very unhappy pup bless her. Well, I got some antiseptic cream to try to sooth them, which she promptly developed an allergy to! Took her to the vet who gave her an anti histamine jab and some tablets, and some antibiotics for her feet. He advised her to keep her in a couple of days which we did, and then told us we should walk her as normal as her pads would soon 'toughen up'.
We did this and were just careful not to let her chase her ball on the sand so she would not open up the sores again, and all was well.
However, took her to the park yesterday, and she was chasing her ball on the grass, and exactly the same thing happened! Poor little love has scuffed up her back pads really badly again. She loves her ball game with a passion but it seems that all her sliding tackles and skidding accross the ground is wrecking her little feet. Can anyone advise me as to what to do? Is there anything I can buy to sooth her sore feet (not that she lets us touch them now ) and anything that I can get to protect them or toughen them up for the future? I walk her twice daily on a mixture of tarmac and grass, but I guess mostly grass as we go the the park alot, and our garden is all grass.

You can get paw wax from big pet stores such as Pets At Home. This protects your dogs paws from ice, grit and salt on the road and I would imagine it was probably the salt in the sea that caused the problems with your dog. It wont do anything to help claws though but you can look at dog boots while she's healing - again, you can get these from pet stores. Hope this helps :)