Hi Todd! When you say “nodule” do you mean a thickened portion of the achilles from a chronic tendionopathy or peritendonitis? If so, I agree with you…can’t think of a reason to stay away from it.
If it is a cyst, then I would think twice. We just don’t know what is in it, and not sure if I would want to “open” anything that could spread infection.
If it is retrocalcaneal bursitis, I would try some 1/2″ needles around the edges of it and see if it helps.
Hope that helps overall! Anyone else? Thoughts or experiences?