Which preposition to use with fomentations

of Occurrences 5%

Apply fomentations of flannels wrung out of boiling water and sprinkled with spirits of turpentine to the part, and give wine and sal-volatile in such quantities as the prostration of strength requires; always bearing in mind the great fact that you have to steer between two quicksandsdeath from present prostration and death from future excitement, which will always be increased in proportion to the amount of stimulants given.

to Occurrences 2%

If inflammation should take place, it is to be treated by applying leeches and warm poppy fomentations to the part where the pain is most felt, and giving two tablespoonfuls of the fever mixture every four hours.

during Occurrences 1%

At the same time, the animal should be slung, or, if non-excitable and inclined to rest, allowed at intervals to lie on a thick and comfortable straw bed, the cold fomentations during such intervals being discontinued.

Which preposition to use with  fomentations