Deep or Gentle Massage on Masseter

I’ve had lockjaw for two months and have not had success with my splint treatment and physical therapy yet to relieve the muscle tension. I’m sure I just need more time, but I’m curious what works for you guys to relieve muscle tightness. Does deep massage (even though there’s slight pain) or gentle massage (even though it feels like I’m not making a difference) make more of a difference in muscle spasms, tightness and soreness?