This pain may be sometimes related to nerve compression at the level of wrist.
Do you also notice any swelling in wrist or hand at night or in morning on waking up.
Next Steps
You can start with analgesic tablet, take vit
b12 supplement, start Physiotherapy for strengthening the nerve tissue supplying wrist and hand.
Health Tips
If not relieved, you may need to go for nerve conduction study of upper limb.
Avoif heavy work with hands.