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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.
1 Topical painkillers. 2  Many over-the-counter creams and ointments are sold to relieve nerve pain. 3  They include ingredients that work as a local anaesthetic, numbing the pain in the area where you apply them. 4  Some contain capsaicin, a painkiller derived from chilli peppers.erve pain, or neuropathic pain, may be relieved with over-the counter painkillers, or a GP or pain specialist may recommend other approaches. Neuropathic pain comes from nerve damage. Most commonly, this is caused by medical conditions such as diabetes, side effects of medication or chemotherapy, or injuries.