Final answer:
The patient should start with symptomatic treatment for the unilateral facial pain, upper molar pain, and nasal congestion. Antibiotics such as amoxicillin-clavulanate might be considered if symptoms are severe or persistent, but careful monitoring before prescribing is important.
Step-by-step explanation:
When a patient comes into the office with complaints of unilateral facial pain, upper molar pain, and nasal congestion, and describes difficulty lying down to sleep but denies fever, shortness of breath, nausea, or vomiting, this could be indicative of a sinus infection or sinusitis. In the absence of fever and other systemic symptoms, the best course of action for this patient may be to start with symptomatic treatment, such as nasal decongestants, saline nasal spray, and pain relief. Antibiotics like amoxicillin-clavulanate could be considered if symptoms are severe or if they persist despite symptomatic treatment, suggesting a possible bacterial infection. However, without signs of bacterial infection, it is often prudent to avoid unnecessary antibiotic use and monitor the patient's symptoms closely before prescribing them.