A nerve block injection contains a local anesthetic or anti-inflammatory medication that temporarily disrupts pain signals. The injection is placed near the targeted nerve to provide relief. Trigeminal nerve blocks help manage facial pain by targeting the trigeminal nerve, which carries sensation from the face to the brain. These injections are often used to treat trigeminal neuralgia and chronic migraines. Occipital nerve blocks focus on the occipital nerves at the back of the head. This treatment is commonly used for occipital neuralgia, tension headaches, and cervicogenic headaches. By reducing inflammation and blocking pain signals, these injections can provide significant relief. The effects of a nerve block procedure can last anywhere from a few days to several months, depending on the condition and the individual’s response to treatment.