I'd like to get lip Injections but my pain tolerance is super low, any suggestions to help with the pain?

For patients who do not tolerate injections well, it is best to numb the lips before augmentation with injections as they are about the most tender area to treat. Unfortunately, things like ice and topical anesthetics are not generally adequate. Many of the injectables have a local anesthetic in them now, but even this is not usually adequate for the lips. It is relatively easy to numb the lips with a 'dental block' but it does require the use of fine needles.

HI Jennifer - your concern regarding the pain associated with in office, lip augmentation is not abnormal. There are topical anesthetic creams, cooling agents but what I have found to be the most helpful is the use of nitrous oxide, often called laughing gas. Dentists have used this for many years. Being a former dentist and understanding it's benefit, I knew how this technology could help my current patients with their concerns regarding pain and anxiety for in-office treatments, which include lip injections. 
Michael Kulick MD
   Board Certified Plastic Surgeon
   Member of ASPS, ASAPS
   Recipient of the Klingbeil Award – Teaching Safe Techniques and Advanced Technologies

The two main ways to anesthetize the lips are to put topicals or carry out some regional nerve blocks.  You can also inject locally but this can obscure the anatomy and may get in the way with the results. Prior to doing the injections for the regional block you can use topicals and ice to further make it more comfortable. Also using something that can create some vibrations can also make the regional blocks even more tolerable.