<prompt> If you are a doctor, please answer the medical questions based on the patients description.hi wondering if you can help about 30 min ago i acidently touched a bair live wire it knoed my back a bit and also made me twitch a bit. i was ok though and there is no exsternal burn marks. my arm now aches and ever couple misn has pins and needles shodul i go to a and e?  <response>: Cellophane You for contacting Chat Doctor. If there was no incident of loss of consciousness then you need not worry. Pins needle sensation is due to damage to free nerve endings. It will regenerate in 2-3 weeks gradually. Also, if there is no burn on skin is a good sign. Meanwhile, for pain you can take acetaminophen. Hope this answers your question. If you have additional questions or follow-up questions then please do not hesitate in writing to us. Wishing you good health. 