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A juice made from the tubers, when taken in moderation, can be helpful in the treatment of peptic ulcers, bringing relief from pain and acidity.
Excessive doses of potato juice can be toxic – do not drink the juice of more than one large potato per day.
A poultice has been made from boiling potatoes in water. This is applied as hot as can be borne to rheumatic joints, swellings, skin rashes, haemorrhoids etc.
Peeled but uncooked potatoes have been pounded in a mortar and then applied cold as a soothing plaster to burns and scalds.
Potato skins are used in India to treat swollen gums and to heal burns.
The leaves are antispasmodic.