I Have COPD And Am Experiencing Exacerbation Problems What Is

I have COPD and am experiencing Exacerbation problems what is the best inhaler I can use for this...the doctors seem to be slow at prescribing the right ones...I am looking for the least expensive one that will help me...I have been getting treatment from albuterol inhaler, albuterol nebulizer and mucinex and prednisone and antibiotics since 1/1/17 and am still feeling terrible....I'm thinking about going to hospital if I can't get some help soon.