This section is from the book "The Home Hand-Book of Domestic Hygiene and Rational Medicine. Volume 2.", by J. H. Kellogg, M.D.. Also available from Amazon: The Home Hand-Book of Domestic Hygiene and Rational Medicine, Volume 2.
This disease is also known by the names ephemeral, irritative, or inflammatory fever. It is the mildest form of fever, and generally lasts from one to three days, though it sometimes continues a week or ten days. It is not accompanied by delirium, and is distinguished from typhoid fever by the absence of the characteristic symptoms of that disease.
The principal causes of febricula are overwork, overeating, loss of sleep, sexual excesses, and exposure to the heat of the sun. It is probable that many cases supposed to be febricula are really cases of typhoid fever in which the disease is checked before its characteristic symptoms are manifested.
Rest in bed, fasting for a day or two, and the use of cool or tepid sponge baths, compresses, and enemas. Patients always get well.