Through all the posts no one mentioned the most beneficial thing. Rest. Rest the tendons, give them a break. Your going to develop tendonitis if you do not manage it now, and may even experience bursitis.
Anti-inflammatory medications, resting it, and replacing lifting using it with dynamic stretching for a week or two, then ease back into it.
I am not here to throw a sales pitch for a supplement company. I just want to see you heal. I have achilles tendinitis in both my legs. Its no fun.
Fish oil and cissus will help. But only a little. The pain is your body saying "Something is wrong! Stop!". Don't ignore it.