beyondhom Bull ant reaction

I thought it was interesting that I gave my gardener a small vial of Ledum 
30 pills about 4 years ago which he has kept in his truck through heat and 
cold and Australian heat in summer is pretty high & he told me last week 
that he was bitten by a bull ant (to which he is allergic to the point of 
collapse) - remembered to take a couple of Ledum and had no response to the 
bite!

After that long and in those conditions I was quite surprised too!

Jane