I used Leucillin from pets at home at the suggestion from a dog breeder......its a natural product that promoted natural healing.....whether it was coincidence or not but I sprayed on Rosies sore paw for a day , next morning the lump on the paw was raised and weeping, squeezed it between a tissue and out popped the grass seed....sprayed again over a couple of days, paw completely back to normal ....friend has been using it on a cat with a nasty cut, He has been on antibiotics with little success but after just a couple of days there is massive improvement.Rosie had only had antibiotics 3 weeks ago for another grass seed, that time it hadnt remained in the paw but the vet gave antibiotics anyway and really dont want to keep giving Her antibiotics.