Does anyone know what this might be? I thought it was a simple bug bite about two weeks ago, but now it has grow into this and doesn't seem to be receding. My Vizsla knows it's there, because he has started rubbing that side of his head on the grass which he normally doesn't do. I'll probably take him to the vet in the next day or two, but I'd still like to hear your thoughts on what this could be. Thanks!
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