A few days ago, a friend of mine gave me a headlock (basically wrapped his forearm tightly around the top part of my head), this resulted in a sore area to the right of my right eye, a bit below where the eyebrow ends. The vein here looked swelled and generally sore.

It's been a red patch for the weekend but has now turned brown and feels sore and patchy. Would just like to make sure that this a bruise type reaction that'll heal or is this a more long term damage or worse?

Any advice appreciated.