Topical Treatment for TMJ Arthralgia

The goal of this clinical trial is to evaluate the efficacy of topical 2.5% hydrocortisone in TMJ arthralgia. The main questions it aims to answer are: * How does pain reduction compare? * How does improvement in jaw function limitation compare? * How do side effects compare? Participants will * On day 1 be examined and report their pain level and jaw function limitation * On days 1-21, apply their cream four times a day * On day 21, report their pain level, jaw function limitation, compliance with instructions, and side effects. Researchers will compare topical 2.5% hydrocortisone and topical 1% diclofenac to see if efficacy and side effects differ.