my 2 year old son had this just this year, around summer. we thought its just rash, pero dumami and nagsugat. one look of the pedia, he said its impetigo. pedia said its caused by bacteria present in our skin already, but due to the air's moisture (pag ulan - init), they react. i got a few too and so with my dad. hirap pigilin ang baby na magkamot, kaya frequent handwashing talaga para wag dumami. he was given bactroban too. then yung medyo malaki sa legs and arms, we have to put gauze para matuyo and wag na masagi.