Allergies are a common cause of hives since an allergic reaction can trigger the immune system response that results in trapped fluid beneath the skin.An allergic reaction can occur due to something you ingested or were exposed to through the air.hoto Credit pollen image by asb from Fotolia.com. Allergies are a common cause of hives since an allergic reaction can trigger the immune system response that results in trapped fluid beneath the skin. An allergic reaction can occur due to something you ingested or were exposed to through the air.
The median nerve, which runs through the arm and hand, can cause swelling pain and numbness if injured. Ulnar nerve injury Damage to the ulnar nerve causes swelling, pain and numbness in the forearm, hand, and ring and little fingers.
Do your hands ever go numb and tingly? Do you wake up at night with a âdeadâ hand and have to shake it out to get it to âwake up?â Do your hands fall asleep while driving a car or holding a cell phone? If so, then you may have increased pressure on a nerve in your palm â a condition called Carpal Tunnel Syndrome.