In quran surah nissa v:56 Allah swt talks about the nociceptors for pain in skin in this manner:
"Those who reject our Signs, We shall soon cast into the Fire: as often as their skins are roasted through, We shall change them for fresh skins, that they may taste the penalty: for Allah is Exalted in Power, Wise"
in this verse Allah swt clearly restricts the sensation of pain to the skin and today we all know that pain receptors are distributed to all part of the body for example if i drink hot tea my mouth,pharynx and esophagus will burn it is a simple observation we had in our life. so isn't this verse unscientific rather than scientific?