Which preventive measure reduces risk of Otitis Externa?

Which preventive measure reduces risk of Otitis Externa?

• A. Keep ears dry by avoiding moisture exposure.
• B. Use daily oral antibiotics prophylactically.
• C. Avoid all ear drops.
• D. Avoid swimming altogether

Answer: (C)

Keeping the ear canal dry is the key to lowering the risk of otitis externa. Moisture in the external auditory canal creates an environment where skin maceration and microbial growth—particularly Pseudomonas and fungi—are more likely. Practical prevention includes drying the ears after swimming or showering, tilting the head to help drain water, gently patting the ear dry, and avoiding inserting objects or cotton swabs into the canal. Using protective measures during water exposure, such as earplugs or a swim cap, also helps. In people with recurrent infections, clinicians may recommend drying or acidifying ear drops after water exposure to maintain a less favorable environment for microbes. Daily oral antibiotics for prophylaxis are not appropriate due to risks of antibiotic resistance and side effects, and avoiding swimming is not necessary or practical. Avoiding all ear drops would remove an established preventive option for those at higher risk, whereas appropriate topical drying/acidifying drops can aid prevention.

Keeping the ear canal dry is the key to lowering the risk of otitis externa. Moisture in the external auditory canal creates an environment where skin maceration and microbial growth—particularly Pseudomonas and fungi—are more likely. Practical prevention includes drying the ears after swimming or showering, tilting the head to help drain water, gently patting the ear dry, and avoiding inserting objects or cotton swabs into the canal. Using protective measures during water exposure, such as earplugs or a swim cap, also helps. In people with recurrent infections, clinicians may recommend drying or acidifying ear drops after water exposure to maintain a less favorable environment for microbes.

Daily oral antibiotics for prophylaxis are not appropriate due to risks of antibiotic resistance and side effects, and avoiding swimming is not necessary or practical. Avoiding all ear drops would remove an established preventive option for those at higher risk, whereas appropriate topical drying/acidifying drops can aid prevention.