The cause of carpal tunnel syndrome is usually from something you do daily. This painful hand disorder can result from your job, hobby or something else.
A carpal tunnel sleeping splint can relieve the numbness, pain, burning & tingling in mild and moderate cases. Severe cases require additional remedies.
What carpal tunnel feels like differs among patients. Early symptoms usually include numbness, pain, burning & tingling in the palm and middle fingers.
The short answer to "Can carpal tunnel syndrome go away by itself" is No. For milder cases simple rest will work. But severe cases need more attention.