Dried, whole or fragmented flower.
The ESCOP (European Scientific Cooperative on Phytotherapy) recommends its use for the treatment of dry cough and irritation of oral, pharyngeal or gastric mucosa. The indications approved by the Commission E (for both leaves for flowers) are for treating inflammations of oropharyngeal mucosa and for dry cough.
Due to its mucilage content, the flower has protective properties (being a viscous substance that exerts local protective action), in the same way as the mucus membranes protect respiratory mucosa. Popularly it is also used as a local anti-inflammatory.