Hello dear.. Inhalers are meant to provide instant relief from the symptoms of COPD. They act by dilating the smaller airway passages, relieving the obstruction & increasing airflow to lungs. So...you can use it whenever you are having an acute attack. If symptoms still persist, it will be better to consult a Pulmonologist for further management. Regarding the use of Hydroxycut, they are a class of dietary supplements. But they should be taken after consulting your treating physician, as the use of Hydroxycut is associated with certain side effects like liver damage, rhabdomyolysis, seizures, etc. Wishing you a Good Health. Let me know if I need to clarify further. Thanks & take care.