Random itchiness and redness?

So ive had these random spells lately and i get a burst of itchiness. It hasnt happened infront of anyone until last sunday at easter dinner. Family saod i was turbing red and splotchy at the same time i had a burst of itchiness. Its not food allergy because i didnt eat this morning and hate a spell. Its not a rash because the red and itchiness go away. Im not sure what it is or what causes it. The targetted areas of symptoms are head and chest. Anyone have any ideas??

2017-04-11T00:37:33.809Z