Problem in temporomandibular joint/jaw joint .
Have soft food strictly.
Use spoon for having any food, do not use hand.
Do not open mouth wide, while yawning/speaking loudly/ do not clench teeth.
If having any kind of fruits, have in very small small pieces.
Chew with both sided back teeth.
Do not keep checking your clicking sound of jaw,it will make the condition worse, may cause pain.
If it's bothering you and causing unavoidable discomfort feel your muscle fatigueness, T.myospas /myotop P, twice a day for 7 days. After food. Antacid along if required.
Next Steps
visit dentist for detecting severity of the jaw and treatment will be decided accordingly.