I have broken out in small red, raised bumps on the back of my hands.  I now have a few on my forearms.  They hurt.  The back of my hands are burning.  They burn with putting cold water or cool air on them.  This breakout started yesterday.  What is this?
Hi, It seems that you may be having purity or lichen ultimatum. There may be some triggering factor. It may be some allergen or irritant like house dust. House dust mite, pollen, wool, fume,cosmetics, deodarant, perfume.etc. it may be due to hypersensitivity to insects bite.bedbug, mosquito or flea. Sun exposure might exacerbate. Soap bath should be avoided. You consult dermatologist for firm diagnosis. You may take antihistamines and steroid in tampering dose. Application of mild steroid cream might improve the condition. I hope you got my answer. Thanks.