Sore throat
Coughing related to the flu can easily lead to sore throats. Viruses like influenza can actually cause swollen throat without coughing. During the early stages of the flu, your throat can feel scratchy and irritated. You can also experience a peculiar feeling when you swallow food or drink. If you have a sore throat, it is likely to get worse as the viral infection progresses.
Stocking up on chicken noodle soup, coffee-free beverages, and warm water can help soothe a sore throat. You can also gargle with a cup of warm water, 1/2 teaspoon of baking soda, and one teaspoon of salt.