Get Your Dog Care Questions Answered by Experts
Ticks are a parasite that attack to the dog and suck the blood from the dog. I am glad that you were able to find it and to remove it successfully. You should think about getting your dog on a flea and tick preventative like frontline so that you can avoid these in the future. This will also eliminate the chance of your dog getting a tick born disease.
This bump is pretty normal after the removal of a tick. Keep an eye on it and see your vet if it doesn't start to resolve itself in a few days. You can apply some benadryl cream to it to hasten healing.
Let me know if you still have questions.