Sentence:  ‘Children crawled over each other like little grey worms in the gutters,' he said. ‘The only red things about them were their buttocks and they were <WSD>raw</WSD>. Their faces looked as if snails had slimed on them and their mothers were like great sick beasts whose byres had never been cleared. […]' 
Meaning of the word marked with <WSD> tags:  Having had the skin removed or abraded; chafed, tender; exposed, lacerated. (from 14th c.)