Common Mallow (malva sylvestris) is known to contain a mucous like substance and is therefore a great helper fighting dry coughs and bronchitis. Mallow can also help soothe an upset stomach, diarrhea and heartburn. Tinctures are a food supplement with healing properties, not a medicine. If you have serious issues you need treating, contact your GP. Dosage: 20 - 40 drops are diluted in a bit of water and taken once to three times a day.