For years my son has experienced coughing fits early in the spring and in November. On schedule, he has been coughing continuously for about a week. He was at the family doctor who prescribed puffers and suggested that he has allergies. The puffers have been uneffective and he continues to cough all day and night. In fact, it is getting worse/progressive (from a dry cough that sounded as if it was in his throat to a deeper/wetter cough in his chest). He is spitting up greenish/yellowish flem sometimes accompanied by blood.
Does this sound like a viral cough or something that needs to be treated with antibiotics?