I'm sorry to hear that you're still feeling unwell after taking paracetamol (PCM) and cetirizine. A sore throat and nasal congestion lasting for two days could be due to a viral infection like a common cold or allergies.

Here are a few points to consider:

• Paracetamol helps reduce pain and fever but does not treat the underlying cause.
• Cetirizine is an antihistamine that helps relieve allergy symptoms such as runny or itchy nose but may not be effective if your symptoms are due to an infection.
• If symptoms persist beyond a few days, worsen, or are accompanied by high fever, difficulty breathing, or severe pain, it is important to see a doctor for a thorough evaluation.
• Meanwhile, stay hydrated, rest, and consider using saline nasal sprays or throat lozenges to ease discomfort.

Since your symptoms have not improved, I recommend consulting an ear, nose, and throat (ENT) specialist or a general physician to determine the cause and receive appropriate treatment.

If you experience any emergency symptoms like difficulty breathing or severe swelling, please seek immediate medical attention.To narrow down potential causes, we will need some more information.Please tell me your age and gender.