Arm reckless?/?

o so i got this over-hasty on my arm that ive had for 2 months presently, its the size of a grape and its itchy, somedays it swells into a lump, ne ideas what this could be?Arm reckless?/?
are you sure its a over-hasty...have you changed your soap your using, for your clothes and body.. own you done anything new outside or inside. and if it dont turn away . you should go find a doctor... hope it help...
I wouldn't even try to guess. But you need to enjoy your primary care doc refer you to an allergist ASAP. He will do conducting tests to determine what is causing the over-hasty (probably an allergy of some kind that you are unconscious of) and he will devise a treatment plan for you. If you have bumps the size of grapes you should be running, not walking, to an allergist. Like I said, you will probably call for a referral from your primary care doc. Contact him IMMEDIATELY!!
Hope this help, luv. Don' mess around with it. It could be fairly serious, but only the allergist will know how to tell.