136. Fumus terra: i.e. fumiter; hot and dry in the second degree; it purges the burnt humours, the salted phlegmatic humour, and every sort of melancholic humour; it serves well against skin disease, and every rash that comes on the skin. This is how it is administered; take three spoonfuls of the juice of fumiter, and a spoonful of honey or sugar, mix them, and give it to the patient when he is fasting in the morning, and this will preserve a person from skin disease, and it will help with every sort of rash. Item, half a quart of juice of fumiter, and the same amount of whey of goats' milk, if it be drunk, it is wonderful how it helps with every skin disease, rash, and scabby head. Item, take two dragmas of powder of spurge, and give it in juice of fumiter, and this will help with every dropsy. Item, take roots of fennel, parsley, celery, and juice of fumiter, make a syrup of them as appropriate, and this will be beneficial for people with dropsy, arthritis, or podagra. This herb should not be given, except with another herb which has the ability to provoke the urine, because it is very windy, and it should not be given every day, but only after the interval of at least one day. It should not be given boiled, but only raw; Platearius says that this herb is best when it is fresh; the