My son had similar spots, & we found the culprit was his wat
ch,he was allergic to the metal on the bottom of it,he had these spots in
his hair,& very itchy,we took him to a speacialist & had him remove his wat
ch,he also had them there,we could not beleive it was caused by that
,but once his wat
ch was removed the spots all cleared up & had not had a problem sin
ce he had went months with this until we found the culprit,Good Luck.