I keep getting bumps that are about a quarter in size. They appear all over I have had them on my arms, hands, and back, shoulders etc. Never on any legs or my chest.

They last about a day then go away just to come back anywhere from 1day to 6months later.. Then the same process again they go away and come back w/e they want. Nothing seems to trigger it (had it on cold and hot days) And I pretty much do absolutely nothing outside but work on cars so I doubt its a allergy.

My fiance things its Hive's? but i thought hives come and go but always in patches of more then one normally in small little bump groups?..

Any help would be appreciated they iche like hell when they are here..