Relief from Botox injections in Masseter muscles last only 3-4 weeks, between 15 and 25 units per side. How can I make it last?

Thank you for sharing your excellent question. Some insurance companies do pay for the cost of the Botox product to be injected but this is insurance carrier to insurance carrier dependent and plan to plan dependent.  I would reach out to your specific company to discuss your policy's coverage options. 

First of all the dose you are getting is extremely small and increasing it will have a longer lasting effect but also increases the cost. Insurance companies are totally unpredictable as to what they really will pay but ask and see