But if a quotidian is formed from a quartan, when that has happened in the beginning(14), it is proper to abstain for two days; in the evening to make use of friction, and give only water to drink. On the third day it often happens, that the fit does not come. But whether it has appeared or not, food must be given after the time for the fit: and if it continue, the strictest abstinence possible must be enjoined for two days, and friction used every day.