For severe throat pain, an over-the-counter pain reliever like paracetamol or ibuprofen can help reduce inflammation and discomfort. For your dry cough, a cough suppressant containing dextromethorphan can quiet the cough reflex, while throat lozenges containing benzocaine can soothe your throat. Staying well-hydrated with warm liquids and gargling with warm salt water will also provide significant relief. Since your throat pain is severe, please consult a healthcare professional to ensure you get the right care, especially if you develop a high fever or if symptoms do not improve in a few days. Rest well!