Recently I have noticed a small amount of swelling on my green iguana's foot. I have been taking him outside to free room around while I watched him but currently I have taking him to an area where I have noticed there were small fire ant colonies. The day after I've taken him out I have noticed the swelling on his foot and I was wondering if anyone else had their iguana experience this type of lump. I am unsure whether this is the result from a fire ant sting or an abscess. He has not experienced any injury on or around this foot or at for matter of fact (besides his healing snout injury). I having already contacted my vet and he said it could be an abscess and that I should bring him in if it does not go away on its own. Has anyone else have their iguanas encounter fire ants?