38 Days Post-op, will the epi scar in the inner corner recover? Should I use Scar Gel? (Photo)

You will get the same result simply being patient.  Scars like this are precisely why I generally to not advise epicathoplasty.  In my opinion, it is generally offered by surgeons who are indifferent to the 30-40% of these cases with unsatisfactory results.  I also think injecting with steroids may not accomplish what you need.  Remember, you are very early from this surgery and much healing still needs to take place.

At 38 days it is too early to really pass judgement on the scar.  I would recommend you give it a few more months before final assessment.  Also, massage of the scar is often helpful.