What to do if i have a viral infection, symptoms: fever, sore throat, and cold symptoms. what could it be?

Respiratory virus!: Good afternoon, with symptoms of sore throat, runny nose and fever probably, you are likely suffering from a viral respiratory infection. These will run their course of about a week. During this time, symptomatic relief can be achieved by taking medications such as ibuprofen, claritin, (loratadine) and sudafed. Hope you feel better soon.