I knew that to be the case. If the ongoing sinus infection results in a secondary infection, which is typically bacterial, then an anti-biotic is often called for. Overuse and misuse (not taking the full course when they are necessary) of anitbiotics has serious effects, both for the individual and on a broad scale. Over the counter medications can cause problems, too. As I explain to my children, it's not a good idea to use over the counter remedies to supress symptoms, other than a fever reducer if it gets past 100 degrees. That is because, I tell them, your runny nose is your body's way of getting what needs to come out out, as is coughing and sneezing. For a small child, if coughing at night is really interfering with sleep, I may on occasion give cough medicine, as exhaustion will slow the process of getting well. However, for the most part, I let the body do what it needs to to get the sickness out of the system, boosting the immune system with extra Vitamin C foods and other foods that promote immune system function and health, as well as increasing fluids. That reduces the chance of a cold, flu, or sinus issue resulting in a secondary infection, because that stuff isn't staying in there for bacteria to grow. A common sense approach to sickness and health will do wonders in most circumstances. Paying attention to diet and nutrition can help prevent many sicknesses and diseases in the first place.