To relieve your symptoms, you can try a few over-the-counter options. For immediate relief from congestion, a nasal decongestant spray like oxymetazoline can help, but limit its use to three consecutive days to prevent worsening congestion. For ongoing sinus pressure, a steroid nasal spray like fluticasone propionate is very effective at reducing inflammation. You can also use oral decongestants like pseudoephedrine to relieve pressure, and saline nasal sprays to safely clear mucus. Please stay hydrated and rest. If you experience severe shortness of breath, a high fever, or if symptoms persist beyond ten days, please consult a doctor for a formal evaluation.