Redness around stitches(?) after weight lifting (photo)

Had my otoplasty 6 weeks ago and I went to the gym thinking I would be fine. Since yesterday it has been bothering me a little behind one of ears where I assume the permanent stitches are (other ear has no pain). I am an athlete so when I exercise I tend to go 100%. Prior to this I wasn't annoyed by the stitches at all on the ear. It's a little tender/sore and it's a dull pain. What is this redness due to? Was done overseas so going back to the surgeon isn't really an option.