Quanity symptoms and conditions

Anytime our son has a cough or cold, my wife likes to play doctor and immediately administers Accuneb about every 6 hours. After two or three treatments, our six year son begins to have a fever, rapid heart beat, labored breathing, chest pain, headache, restlessness, weakness, flushing, and diarrhea. She worked in a doctor's office once and was given the assignment to repack pill drugs into smaller quanity bottles -- now she just can't wait to administer drugs, especially Albuterol. HELP!