Local anesthetics are safe for most patients but can occasionally cause side effects. Fortunately, the side effects are usually mild and wear off quickly. They can include:
Tingling and minor pain in the injection site
Dizziness
Headaches
Drowsiness
Muscle twitching
Allergic reactions are rare but can occur and are typically accompanied by difficulty breathing, swelling, hives, or the throat closing. Tell Dr. MacDonald about any health conditions you have or medications you take to avoid interactions with the local anesthetic.