Hi thanks for asking question.
Is she smoke? Taking alcohol?? Bluish discolouration over mucosa seen?? Edema present??
According to you history she has copd.Let me know you it is not curable disease except lung
transplantation.
If bluish discolouration present
cyanosis then condition worsening.Stop
smoking.
If edema present there might be
heart failure secondarily and severe form.
Here it seems severe stage.
Whenever difficult breath nebulization can taken by
levosalbutamol .it will show dramatic temporary improvement.
If other symptoms of congestion present then decongestent taken.Antihistaminic drug also useful.steam inhalation good.
Get her chest x ray.
Meanwhile if any unusual symptoms present take her to near er urgently.
I am happy to help you further.
Dr.Parth goswami