The minimum dose is as essential to homoeopathy as the law of similars.
The best results are only obtained when the disease force and the remedial force are on the same plane. This may explain why in some cases a low potency cures after the failure of a high. When a medicine needs repetition it should be given in the same potency as long as it will act.
If the remedy called for during an acute exacerbation is afterwards needed for the chronic condition it must be given in a different potency.
Very high potencies should not be used in incurable cases.
In certain oversensitives very high potencies instead of curing always cause provings, and such people do better with the 200th or 1M. When the patient has been long accustomed to the use of low potencies you do not always get good results from the higher potencies at first. Conversely the frequent proving of high potencies seems to develop a susceptibility and such provers obtain more and finer symptoms than those who have only proved low potencies.
In all periodic diseases, periodic either with regard to pain, convulsions or discharges, it is not advisable to give the remedy during the exacerbation, but immediately after it.–(Kent, Journal of Homoeopathics, Sept. 1897).