Eosinophilic pneumonia is a type of lung inflammation characterized by an increased number of eosinophils, a type of white blood cell, in the lungs. This condition can be caused by various factors, including infections, allergies, and exposure to certain medications or toxins. Symptoms often include cough, shortness of breath, and fever. Diagnosis typically involves imaging tests like chest X-rays or CT scans, along with blood tests and sometimes a lung biopsy. Treatment usually focuses on addressing the underlying cause and may include corticosteroids to reduce inflammation. Early intervention is important for better outcomes.