I think it is always interesting how time has changed our ideas regarding medicine. I love old books and found the following in an 1880’s cookbook.
HINTS IN REGARD TO HEALTH
“One should be cautious about entering a sick room in a state of perspiration, as the moment you become cool your pores absorb. Do not approach contagious diseases with an empty stomach, nor sit between the sick and the fire, because the heat attracts the vapor.
That the flavor of cod-liver oil may be changed to the delightful one of fresh oyster, if the patient will drink a large glass of water poured from a vessel in which nails have been allowed to rust.
The best time to bathe is just before going to bed, as any danger of taking cold is thus avoided; and the complexion is improved by keeping warm for several hours after leaving the bath.”