Conclusion
Otologic procedure may be a predisposing factor of focal chronic
myringitis. Ear drops had poor efficacy compared to other treatments. It
can be applied only on minor and fresh symptom cases. In this study, we
suggest CO2 laser can be the first line treatment,
especially for the troublesome or refractory GM cases, which had the
higher successful rate and less complication comparing to caustic agent
cauterization.