You have a trigger finger. Options include anti inflammatory drugs, physiotherapy  & excercises in initial stages. However if it's persistent or not responding to conservative management we can release the tight pulley by doing a small surgery under local anaesthesia. Takes 7-8min,only local anaesthesia, no fasting, walk in & walk out in an hours time and 3-4stiches is all it takes. However surgery is recommended when u don't respond to other treatment options.

This is called trigger finger and needs Physiotherapy :Ultrasonic therapy and wax therapy helps in relieving the inflammation and pain.  Some exercises:stretching and strengthening of fingers are helpful as this is the inflammation of the covering sheath of the muscles and get locked during bending of the finger.

Gentle Stretching of Hand Muscles. Ball exercises. ultrasonic therapy for the inflammed tendon Towel curlling with hand and fingers

Hello there...I can understand your concern. from your description it looks like you could be suffering trigger finger. it occurs due to inflammation of the tendon of the finger. but clinical examination will have to be done confirm the disease. it is more common in people with arthritis, gout diabetes. so important to rule these out. treatment will rest, splints of necessary, anti inflammatory medications and steroids in severe cases. kindly consult a orthopedic for further evaluation and treatment.