So i have a good amount of scar tissue built up on my side delt on my right arm .. laid off the site for a couple months .. the other day I thought it would be a good idea to pin that area . I injected 1ml of test e and followed all sanitary shit like I usually do .. woke up two days later and I have a lump that is raised red and warm to the touch .. the lump is 3 inches lower than where I initially pinned the gear it's at the lowest point where your delt attaches close to the bicep . I have no fever no chills no signs of infection. .. it's not painful just discomforting. Sterile abscess ? Just a knot ? I have amoxicillin and clindamycin on hand jsut in case .