ds2 aged almost 3 has had cold which has set off his usually mild asthma.hes on flucticasone and subultamol(which hes having 2 puffs every 4 hours).im also giving him cough medicine which has given him poops(nice).and hes being sick from coughing and a nose bleed.i just gave him his blue inhaler again and hes just constantly coughing but like he cant quite catch it.what else can i do?and how long can he have inhaler every 4 hours and medicine every 4 hours?