Flu: What To Do If You Get Sick | Influenza (Flu) | CDC If you have flu symptoms and are in a group at higher risk of serious flu-related complications, or if you are very sick or worried about your illness, contact your health care provider. Certain people are at higher risk of serious flu-related complications (including young children, people 65 and older, pregnant women, and people with certain medical conditions). If you are in a group at higher risk and develop flu symptoms, contact your doctor early in your illness. Remind them about your higher-risk status for flu. CDC recommends that people at higher risk for serious flu-related complications should get antiviral treatment as early as possible, because benefit is greatest if treatment is started within 2 days after illness onset. The emergency room should be used for people who are very sick. You should not go to the emergency room if you are only mildly ill. If you have emergency warning signs of flu sickness, you should go to the emergency room. If you get sick with flu symptoms and are at higher risk of serious flu complications or you are concerned about your illness, call your health care provider for advice. There are drugs your doctor may prescribe for treating flu calle and are at higher risk of serious flu complications or you are concerned about your illness, call your health care provider for advice. There are drugs your doctor may prescribe for treating flu called "antivirals." These drugs can make you better faster and may also prevent serious complications. You can go back to your normal activities when, for at least 24 hours, both are true: After these two criteria are met, there are some additional precautions that can be taken to protect others from respiratory illness. CDC recommends that children and teenagers (anyone aged 18 years and younger) who have flu or are suspected to have flu should not be given Aspirin (acetylsalicylic acid) or any salicylate containing products (e.g. Pepto Bismol); this can cause a rare, very serious complication called Reye's syndrome. Stay away from others as much as possible to keep from infecting them. If you must leave home, for example to get medical care, cover coughs and sneezes with a tissue. Wearing a mask is an additional prevention strategy that you can choose to further protect yourself and others. When worn by a person with an infection, masks reduce the spread of the virus to others. Masks can mask is an additional prevention strategy that you can choose to further protect yourself and others. When worn by a person with an infection, masks reduce the spread of the virus to others. Masks can also protect wearers from breathing in infectious particles from people around them. Wash your hands often can also help you keep from spreading flu to others. Take other everyday preventive actions to stop the spread of germs. This also can include taking steps for cleaner air and hygiene practices like cleaning frequently touched surfaces.