hi
taking two potencies of same remedy is an other way to arouse response and there is no harm provided higher potencies are not repeated two frequently Nat mur 30 an 200 are not inimical with each other similiarly use of more than one remedy will not bring the SUN down on earth provided a remedy compliment the first used remedy and its not anti to firt remedy my own experience with multiple potencies and mulptile remedies hv shown good results and quick and better response but it all depend upon yr experience about remedies inter relation knowledge
kindy also bear in mind that traditional and classical homeopath use only one remedy perhaps some patients do no have the patience to wait weeks and months so an improved way out is the desireable solution