Hi Welcome to healhcaremagic After going through your query I concluded that you got injury to your knuckle. Most probably it is ligament injury but you can get your x ray to exclude fracture. Treatment of it is rest to the joint and analgesic. Rest to joint means you have not to do work with your hand. Analgesic such as ibuprofen are useful for pain relief. You can discuss your doctor about it. Hope your query get answered. If you have any clarification then please don t hesitate to write to us. I will be happy to answer your queries. You can also write to me directly on below link: https://www.bit.ly/askdrsudhirortho Wishing you good health. Take care.