My 15yr old son has Type1 juvenile diabetes. Yesterday he developed sinus congestion with a cough. His brother had the same symptoms last week so im pretty sure its same cold and will last 3-4 days req.no more than simple over the counter meds. However as this is the 1st time he's been ill since finding the diabetes I am unsure if this med is safe for diabetics or if there's a carb/sugar count per dose? The label doesn't say what possible effects to blood sugar there there may be. For all I know no insulin adjustment is needed & im worried for nothing but the fear of what if is stopping me. My son just wants to stop coughing long enough to sleep. What do I do?