For a sore throat, gargle with salt water. Stir a teaspoon of salt into a cup of warm water, then gargle with the solution to reduce swelling. Repeat every few hours. Warm, herbal tea can also reduce pain and soothe a raw throat. Adding honey, which has a antiviral effect, will also help with the pain.
For sinus pain, use a saline spray or rinse to clear out mucus and bacteria. This will help to reduce the pressure.
For a fever, drink plenty of liquids. A fever can cause you to sweat, even when you feel cold. If you don’t replenish those fluids, you may become dehydrated.