There can be possibility of urticaria
in yourself. There can be mutiple causes of the dame but some time we are not able to find the exact cause of the urticaria.The only precaution you must follow is not to touch, pinch pop or squeeze any of them other wise it can get infected and can cause complications. You can apply hydrocortisone cream
and can take by mouth the antihistamine Loratadien or levocetrizine.