Maria is a 26-year-old female with a 2-week history of cough and congestion, which started out as a “normal cold” and now “feels worse.” She took 3 days of antibiotics her mother gave her from Mexico (name unknown). No change in symptoms. NKDA. Notes green mucous and nasal discharge. Positive exam findings include temperature of 100.0°F, greenish postnasal drainage, swollen turbinates, and frontal sinuses tenderness. What is your recommendation for treatment and why? When should the patient expect to feel better? Are there any OTC remedies to consider?