The flowers of this plant can be softened in water and then chewed to relieve the pain of a toothache. The flowers can also be brewed by infusion into a mouthwash that is said to soothe irritations of the mouth and gums.
The fresh or dried leaves, too, can be used, either to make a poultice or brewed to make a tea. In the latter form, mallow soothes the mucous membranes and is therefore considered a good remedy for sore throat or even sore tonsils. Some claim mallow tea will calm, intestinal irritation.
Externally, mallow tea is used as a body wash particularly on children, to reduce fever, or to clean bruises. Crushed leaves are also applied to relieve the inflammation associated with mumps. However it is used, it should be washed well because dogs tend to choose the mallow plant to mark their territory.
Healing with Herbs and Rituals, Eliseo "Cheo" Torres
Just drying leaves and flowers now. We have no dogs so marking isn't an issue but the bugs have started to eat the leaves and we wanted to harvest before it was too late. This is growing all over the yard but mostly in high traffic areas. This small patch was protected by a makeshift greenhouse which was removed this morning.