Thanks for your question on Healthcare Magic.
I can understand your concern.
Sudden onset
severe coughing in night is mostly due to way
heart failure or asthma.
And sorry to say but no home remedy is effective to control the cough produced by these diseases.
Better to take her to hospital and get done
1. Blood pressure monitoring, ecg, 2d echo and
stress test (trade mill test) for the diagnosis of heart failure.
2. Clinical examination of respiratory system and PFT (pulmonary function test) for the diagnosis of asthma.
She may need diuretics and other cardiac supportive drugs if it is heart failure.
She will need inhaled
bronchodilator, inhaled
corticosteroids and combination of antihistamine and anti allergic drugs if it is asthma.
Don't worry, she will be alright. But first diagnose and then start appropriate treatment.
Hope I have solved your query. I will be happy to help you further. Wishing good health to your mother. Thanks.