Radiotherapy to parotid or submandibular glands is effective for drooling in patients with Parkinsonism
A randomised double-blind placebo-controlled trial has shown radiation of parotid or submandibular glands to be successful in the treatment of drooling in Parkinsonian patients. Drooling occurs in 32 – 74% of patients with Parkinsonism. It is mainly caused by impaired swallowing of saliva. This can cause significant physical and emotional