Thanks for the details.
This type of pain usually occurs in Carpel Tunnel Syndrome. Since, it is affecting only one hand all the causes of generalized paraesthesias like vitamin deficiencies and other causes like cervical spondylosis and thoracic outlet syndrome can be easily set aside and ruled out.
I suggest that you get an appointment with your PCP to start with. S/he will perform some clinical tests namely, the Tinel's test and the Phalen test to confirm the diagnosis.
Other tests like Nerve Conduction Studies can also prove useful. A small day care procedure for release of the nerve can be done later on if this is found out to be carpel tunnel syndrome.
The most typical signs you have that goes in favor of this diagnosis is the burning sensation, relief of pain on bending the wrist and the progression of the pain. THis is especially common among young female who type a lot or use their hands a lot to lift objects like trays and dishes.
You can for now start on anti inflammatory medication like Ibuprofen (Advil, Brufen, Motrin) 600 mg thrice daily and also apply liquigels like Dicloran or Brufen thrice daily on the painful area. Immobilizing the wrist by wearing a wrist brace and being gentle with the hand will also be very beneficial.
Hope this helps.
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