Which treatment can be used for otitis externa if the tympanic membrane cannot be visualized?

When considering treatment options for otitis externa in instances where visualization of the tympanic membrane is not possible, it becomes crucial to select a therapy that is both effective and safe for use in potential cases of tympanic membrane perforation. Flumetasone combined with clioquinol is a preferred choice because this combination offers both anti-inflammatory and antimicrobial properties while being relatively safe in the event of tympanic membrane involvement.

The flumetasone component is a potent corticosteroid that effectively reduces inflammation and alleviates symptoms. On the other hand, clioquinol is an antimicrobial agent that helps manage infections. This combination addresses both the inflammatory and infective aspects associated with otitis externa.

In contrast, other options may contain antimicrobial agents or corticosteroids, but they could potentially include ingredients that are contraindicated if the tympanic membrane cannot be properly visualized. For example, some combinations include antibiotics that could be harmful if used in the presence of a perforated eardrum, such as those containing aminoglycosides. Therefore, the safety profile and appropriateness of the flumetasone and clioquinol combination make it the most suitable treatment option for otitis externa when the tympanic membrane's condition is uncertain.