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  1. Common cold - Symptoms and causes - Mayo Clinic

  2. Plugged ears: What is the remedy? - Mayo Clinic

  3. Cold remedies: What works, what doesn't, what can't hurt

  4. Tinnitus - Symptoms and causes - Mayo Clinic

  5. COVID-19, cold, allergies and the flu: What are the differences?

  6. Cold or allergy: Which is it? - Mayo Clinic

  7. Common cold - Diagnosis and treatment - Mayo Clinic

  8. Frostbite - Symptoms and causes - Mayo Clinic

  9. Ear infection (middle ear) - Symptoms & causes - Mayo Clinic

  10. Raynaud's disease - Symptoms and causes - Mayo Clinic