Damage to TMJ can lead to some swelling , or pain in front of affected ear. Also clicking and grating sound will also show that joint has an internal disorder.
It's advisable that you do massaging of facial muscles after doing hot fomentation- put a hot steaming moist towel with no water dripping in front of the ear and then do volini gel.
Massaging along with gel will give you better results.
Next Steps
Also talk and laugh only when it's needed . wide opening of jaw while eating foods like burger, pani Puri etc , yawning, laughing should be avoided.
Avoid eating hard, chewy food which takes more number of chewing cycles to be broken into pieces like Naan, Nuts, Chewing Gum etc.
Health Tips
Splint should be used with and Expert consultant and regular follow ups are mandatory. Good luck be safe