Find the best answers to your questions at Westonci.ca, where experts and enthusiasts provide accurate, reliable information. Discover comprehensive answers to your questions from knowledgeable professionals on our user-friendly platform. Get quick and reliable solutions to your questions from a community of experienced experts on our platform.

If a patient presents with complaints of ear pain and a headache. Her right ear began hurting yesterday evening. On assessment you note nasal drainage and cervical lymphadenopathy. Which of the following causative factors is most likely responsible for her ear pain?