She gave him three to 4 drops under the tongue just before he went to bed at night for about 3 to 4 days and then he stopped the drops to have the body rest a bit (it boost the immune system). After a few days, my sister made new drops and his progress continued. The recipie says you can take the drops every hour for 3 days and then let your body rest. http://naturinologie.info/english.html#Homeopathic