Final answer:
Usually, external ear infections like otitis externa can be easily treated with ear drops that may contain acetic acid, antibacterials, steroids, or antifungals. Pseudomonas spp. can cause resistance issues, but effective treatments such as specific antibiotics and antibiofilm agents are available.
Step-by-step explanation:
Usually, external ear infections are easily treated (True or False): The correct answer is true. External ear infections, such as otitis externa commonly referred to as swimmer's ear, are typically caused by bacteria like Pseudomonas aeruginosa. Although Pseudomonas spp. are resistant to many antibiotics due to the production of ß-lactamases, mutations affecting porins, and the ability to pump antibiotics out of cells, there are effective treatments available. Otitis externa is generally treated with ear drops containing a combination of acetic acid, antibacterials, and or steroids to reduce inflammation. Antifungals may also be included if fungi are contributing to the infection.
Infections caused by Pseudomonas spp. may require specific approaches, such as the use of polymyxin B, gentamicin or certain fluoroquinolones and in the case of wound infections, topical antibiofilm agents can be used to disrupt the formation of biofilms, making the bacteria more susceptible to treatment. Hot tub folliculitis, also caused by P. aeruginosa is a condition frequently affecting users of pools and hot tubs, leading to symptoms like itching, redness and discomfort.