Hi Welcome to healhcaremagic After going through your query I concluded that you got Achillis tendinitis. It has been due to overexertion. Now swelling is reduced but some swelling remains. There is itching and blackening of skin. It may be due to healing process. But you should take rest and specially not use the effected tendoachillis so that you completely relieved of it. For pain relief you can take analgesic such as ibuprofen. You can discuss with 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 help you. Wishing you a good health. Take care.