Middle Finger Injury

I injured my middle finger playing Rugby three months ago. I did go to a doctor to have it looked at and he x-rayed it and said it wasn't broken . He said it could be ligament and tendon damage and if the pain doesn't get any better, then I would need to go back to see him. It has been three months since the injury and the pain is still the same. It hurts when I hold my finger and move it side to side and up and down and also when pressure is applied. It also hurts between the knuckle and the beginniing part of my finger when pressure is applied. Also it hurts on my knuckle when pressure is applied. Should I get it looked again right away?

Any advice would be greatly appreciated. Thank you.
Cassie