Homeopathy has an excellent repository of medicines for treating cough . There are homeopathic medicines for treating nearly every kind of cough. Coughs can be broadly divided into  asthmatic cough, spasmodic cough, dry cough, croupy cough and Nocturnal Cough( cough that occurs at night). Homeopathic remedies that top the table in treating cough are Drosera , Coccus Cacti ,Cina , Antimony Tart , Pertussin , Spongia Tosta ,Belladonna , Phosphorus ,Cuprum met , Sambuccus and Corralium Rubrum.

Hello... Is your mother on any other regular medication as in for Diabetes or High Blood Pressure?? Because some of these medicines have this side effect... Before starting any treatment please get a blood test done like Haemogram with Absolute Eosinophil count