“…[ 4 ] The eruption is most typically associated with local trauma or infection; however, this is not always the case, and neurological and inflammatory etiologies have also been reported. [ 4 5 ] If the nail apparatus is not involved, then other diagnoses such as palmoplantar pustulosis (PPP) should be examined. [ 6 ] ACH develops into a chronic condition that might proceed proximally to the dorsal portion of the hand or foot.…”