Hello, I'm Dr. Deb and will do my best to help you today.
I'm sorry for this concern about Tripp.
It's not uncommon for lesions such as you're seeing to develop after a tick has been removed from a dog's body, especially if it was a deer tick.
On rare occasions, I've seen these areas become infected but usually they don't; however, it can take up to a week or longer for the inflammation to resolve and the skin to return to normal.
I usually suggest that owners clean the area with dilute over the counter Betadine or Iodine (to the color of weak tea) but don't remove the scab.
Over the counter antibiotic ointment can be applied after the Betadine drys.
I've found that these lesions rarely bother the dog from whom they were removed but if Tripp seems a little uncomfortable, Aspirin can be given as long as he's not vomiting nor taking any nsaid medication. The dose would be 10 mgs per pound of body weight twice a day, with food to avoid stomach upset.
I hope this helps to reassure you about him. Deb