I am having my cocker's pad biopsied next week. We're treating the raw spot on the pad of his back foot with antibiotics this week first to make sure he didn't just step on something. I fear it is a tumor and was told this was fairly common in cocker spaniels. Is this true? It appeared out of nowhere and I've acted on it quickly. If anyone has had this happen to their baby, I'd love to get some input from you. I'm terrified right now. Cleatus is only 4 and is in great health otherwise.