My son is 3.3 yrs old , he is allergic to dust and weather conditions , in the recent x Ray report it has been detected that he is having a little congestion in heart which is a symptom of pneumonia and his wbc count is 39000 ( normal range is 4K-11k) doctors have suggested to give ibugesic paracetamol 7.5 ml in case if fever ( he got fits during fever tht lasted few seconds) , frizium for 3 days ,s- mucolite 5ml , Duolin nebuliser and refzil 5ml for infection .is all these medicines are safe ?