My mother has a dry, barking cough and gets short
Hello and thank you for asking
As you prescribed before your mother suffers from bronchiectasis.
Bronchiectasis is a condition where the bronchial tubes of your lungs are permanently damaged, widened, and thickened. These damaged air passages allow bacteria and mucus to build up and pool in your lungs. This results in frequent infections and blockages of the airways.
There is no cure for bronchiectasis, but it is manageable. With treatment, a patient can typically live a normal life. However, flare-ups must be treated quickly to maintain oxygen flow to the rest of your body and prevent further lung damage.
I will suggest a radiography of thorax ,and consult with lung specialist