intertrigo
  擦爛; 擦爛紅斑
  in·ter·tri·go /-ˈtraɪˌgo/ 名詞
  擦爛
  In·ter·tri·go n.  Med. A rubbing or chafing of the skin; especially, an abrasion or excoriation of the skin between folds, as in fat or neglected children.
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  intertrigo
       n : chafing between two skin surfaces that are in contact (as in
           the armpit or under the breasts or between the thighs)