Hi my son is 2 and a half years,he is on foracorte since 1 month,he was ok when his schools were closed,b it now since last week he s having cough,cold was also there for 2 days doctor prescribed livolin puffs and relent,now cold is .not there but he s coughing a lot ,what should I give him?should I stop relent and give ambrolites along with livolin and foracorte or sething else?