My dog was neutered about 14 days ago. And the wound healed very well said my vet(about a week ago) and it seemed like it too. However, a couple days ago, right next to the surgical sight (not actually on it), a red blister type thing appeared. And today it's gotten a bit bigger. I've taken a picture and posted it on this post. Is this something to be worried about and needs immediate medical attention? Also, for the last week or so, we've been playing with him and taking him to the park. So could that have aggravated the issue?
Also, I don't know if this information will help, but when we was neutered, they patched him up with medical glue instead of stitches. He doesn't lick the wound nor pay it any attention. He doesn't seem to be in pain either in that area.