Differential diagnosis.
Janet, a 20 year-old college student, is experiencing a five-week history of itchy eyes and nasal congestion with watery nasal discharge. She also complains of a “tickling” cough, especially at night, and she has had episodes of repetitive sneezing. Janet gets frequent “colds” every spring and fall. Physical Examination Vital Signs: Temp, 98.8; BP 110/68; Pulse 72; Respirations 18 Skin: Flaking erythematous rash on the […]