Root of any hair follicle is an area for infection commonly bacteria like staphylococcus. This can lead to styes and if the bacteria remain when the body immunity is down it is likely to cause recurrence.
Homeopathic Medicine has excellent remedies like Pulsatilla, Staphysagria, Merc. Etc. to get rid of the styes and also prevent recurrence.
Dr.Venugopal Gouri.