After 5 days amoxicillin cough still frequent and debilitating?

Persistent cough: For cough that persists after treatment of simple bronchitis, the most common cause is "asthmatic bronchitis" where the inflammation causes bronchospasm and wheezing. The use of an inhaled bronchodilator like albuterol will help. The other potential cause is the possibility of pertussis (whooping) cough with spasms of cough bad enough to make you feel like you're about to pass out.

Viral?: If your cough developed during or just after an upper respiratory tract infection, (URI) it is likely non-infectious so an antibiotic may not be helpful. Typically, these coughs are bronchospastic and you may need a bronchodilator inhaler and perhaps a steroid inhaler. These coughs can occur with a viral URI or bacterial and may last for many weeks. Inhalers may increase your comfort.