I'm sorry to hear you're feeling unwell. For symptoms like fever, nasal congestion, runny nose, and body pain, here are some general self-care steps you can follow:

• Rest and Hydration: Get plenty of rest and drink fluids such as water, herbal teas, and fresh fruit juices to stay hydrated.
• Fever and Pain Relief: Over-the-counter medications like paracetamol (acetaminophen) can help reduce fever and relieve body pain. Use as per the instructions on the package.
• Nasal Decongestion: Using a saline nasal gel like Nasoclear Gel can help moisturize your nasal passages, loosen mucus, and ease nasal congestion. Apply it as directed, avoiding contamination by not touching the tip of the tube.
• Avoid Irritants: Stay away from smoke, strong perfumes, or pollutants that can worsen nasal irritation.
• Warm Steam Inhalation: Inhaling steam from hot water can help relieve nasal congestion.
• Monitor Symptoms: If symptoms worsen, persist beyond a few days, or if you experience difficulty breathing, high fever, or severe body pain, please consult a doctor promptly.

Since these symptoms can be caused by various infections or allergies, it is important to see a general physician or an ENT (ear, nose, and throat) specialist for a thorough evaluation and appropriate treatment.

If you experience any severe symptoms or emergency signs, do not hesitate to contact emergency services immediately.To narrow down potential causes, we will need some more information.To provide the best advice, could you please share your age and gender?