Thank you for your question. It sounds as though you have various concerns. It would be most beneficial to discuss your complaints with your surgeon. In person assessment allows for physical examination. Best,
From your description it sounds as though you may have a suture abscess. They typically are well managed with minor care. Be sure to follow your surgeon's instructions and keep him/her updated on any changes that occur.
There are multiple reasons why tenderness may return after 6 weeks. You are still recovering at this point. You are likely back to your normal routine and you may have overused the muscle unknowingly. It is always best to speak with your surgeon about your concerns as he/she is most familiar...