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But different painkillers work better for different types of pain. For pain associated with inflammation, such as back pain or headaches, paracetamol and anti-inflammatory painkillers work best.If the pain is caused by sensitive or damaged nerves, as is the case with shingles or sciatica, it is usually treated with tablets that are also used for epilepsy and depression.ach of these tablets can also be used to treat pain caused by nerve sensitivity or nerve damage, such as shingles, diabetes nerve pain and sciatica. You donât have to have depression or epilepsy for these tablets to help your nerve pain. Amitriptyline and gabapentin both have to be prescribed by a GP.
Nerve blocks numb the nerves touched by the drugs. This relieves pain by interrupting the pain signal sent by the nerves to your brain. Depending on the type of nerve block, your pain may be numbed for a short time or a long time. Nerve blocks for chronic pain may work for 6 to 12 months. They may have to be repeated. Why It Is Done. Nerve blocks are used to diagnose the causes of pain. They also are used to treat chronic pain when drugs or other treatments cause bad side effects or do not control pain. How Well It Works. Nerve blocks often relieve pain. Nerve blocks work well for some types of cancer pain, such as pain from cancer in organs such as the pancreas. 1. Risks