ASto the first part of your question, I think that there is much truth to that ,but since I,ve been online have discovered this issue is one of my own weak points; As far as repetition of remedies, as to when to repeat a remedy is,hopefully never! repeating remedies as regular practice is an allopathic reflex or quack reflex-however, If a remedy {one dose or 2d dose no more tnan about 15 minutes later-either way -again , 2d dose no later than 15 min. after 1st is still considered 1 dose} then you put away rem. and wait! No matter what subject's reaction is-temporary aggravation of Same symptoms, immediate amelioration, especially hoped for,is he /she feels and acts much better mentally ,emotionally-very high probability of physicals healing.As always,there is possibility of other reactions, but some one else will have to fill you in. However, if the exact simillimum occurs after mos., yrs, of 1st dose then it may be repeated. Utmost caution needed here, as simillimum could change , and new remedy has to be considered.Hope this helps, Best regards,Fredric.