Susceptibility, potency selection and repetition are important factors in homeopathic treatment. Susceptibility refers to an organism's reaction to stimuli and determines the appropriate potency. Higher susceptibility indicates a higher potency is needed, while lower susceptibility calls for a lower potency. Factors like age, sex, habits, constitution and disease nature/depth influence susceptibility. Repetition of doses depends on the patient's progress, disease nature and remedy characteristics. Acute diseases require more frequent repetition than chronic diseases. Lower potencies are repeated more often than higher potencies.