To relieve your symptoms, you can take Paracetamol or Ibuprofen to help reduce the fever and ease your headache. For your blocked nose, an over-the-counter oral decongestant like Pseudoephedrine, or a short-term nasal spray containing Oxymetazoline (for no more than 3 to 5 days), can provide effective relief. Rest well and drink plenty of fluids to stay hydrated. Please read packaging labels carefully to avoid doubling up on active ingredients if you take multi-symptom cold remedies. If your symptoms worsen or do not improve after a few days, please consult a healthcare professional.