My dad is 89 years old and every night he comes down with a dry cough which gives him anxiety. The doctor has prescribed an inhaler, tussulin and nose spray and also said this is normal for the elderly. He does have stages of dementia. Has anyone been dealing with this? If so, how do you handle it - it’s very annoying at times. He takes cough drops all day long and always asks for cough syrup before he goes to bed.