Corns, one of the Surest Remedies

"Take salicylic acid, make a thick paste with flour, put on absorbent cotton and apply, leaving same on several days; soak well and corn will come out." This is a thoroughly tried remedy and a good one. This is about as good a cure as there is for corns. After this paste has been on the corn for three days, it should be removed and the feet soaked well, and the corn scraped off.

Source: Mother's Remedies: Over One Thousand Tried and Tested Remidies from Mothers of the United States and Canada, T. J. Ritter