Pain tolerance varies from patient to patient when injectable fillers are used. In some cases, patients are able to undergo the procedure without anesthesia, while in other patients, anesthesia is an absolute requirement.The lips have a high density of sensory nerves and for this reason are very sensitive to pain. Pain thresholds vary from patient to patient for a variety of reasons including anxiety. In some patients this procedure can be performed without anesthesia; while in others this would never be a consideration. Based on your history, quality anesthesia was never really attained and as a result the procedure was discontinued. Clearly alternate strategies are necessary to make this a comfortable experience. Multiple options are available for anesthesia under these circumstances. These include topical agents, injectable agents and drugs that address anxiety. In many cases slowing down the process and using these tools in combination can make this a more comfortable experience.Topical anesthetics are relatively easy to use. These agents are simply spread over the area before the procedure. They take approximately 10 to 15 minutes to work and are moderately effective. The administration of these agents is pain free, but doesn’t totally alleviate pain from the injection of dermal fillers. They can also be used intra orally prior to intraoral anesthetic injections. When using injectable fillers nerve blocks with local anesthetics are extremely effective. This procedure is performed by infiltrating local anesthetic intra-orally in the area of the infra orbital and mental nerves. This effectively provides anesthesia of the upper and lower lips and surrounding areas. This approach provides excellent anesthesia which is almost instantaneous.Treating anxiety with Valium is also helpful when these situations arise. Using topical anesthetics prior to injections and giving these drugs adequate time to work is important as well. When injecting local anesthetics, it’s important to inject slowly to avoid unnecessary pain. When these steps are taken treatment with injectable fillers can be a much more comfortable experience for patients.