To control asthma
ur boyfriend must use combined inhaled corticosteroid and long acting beta 2 agonist 2 puffs twice daily. also use a short acting beta 2 agonist on sos basis.
Also take a 7 day course of oral prednisolone
if there is an exacerbation of asthma.
Try to avoid cold
, dust etc.
I don't understand what ur doctor try to mean by red spot in lung.
Consult a Pulmonologist