My dogs name is Duke, he is a 2 year old Pom/Bich mix and a male. this last summer he ran away for about a week in the beginning of july and came back full of thorns under his arms and the vets got them out but they said what was left was scar tissue. to me this doesn't look like scar tissue and it's growing. the one side popped open and is bleeding now too. I know I will bring him to the vet just wondering if anyone has any ideas that would help put my mind to rest, TIA!