The goal of this clinical trial is to determine whether nerve block injections (specifically, supratrochlear and greater occipital nerve injections) are as effective as Botulinum toxin A (Botox) injections in treating chronic migraine in adults. The main questions it aims to answer are: * Do nerve block injections reduce the number of monthly migraine days compared to baseline? * Are there any differences in the frequency of migraine-related symptoms between the nerve block and Botox treatment groups? * Which treatment leads to higher patient satisfaction and improved quality of life? Participants in this study will: * Receive either nerve block injections or Botox injections every 12 weeks. * Visit the clinic once every month for follow-ups and assessments. * Maintain a headache diary to record the frequency and severity of their migraines and any adverse effects experienced. * Researchers will compare the outcomes of the two groups to determine if one treatment is superior in terms of efficacy and patient satisfaction.