I guess thats why I had to take 5 years of education before I could call me a homeopath.
Homeopatics are usually harmless, unless taken over and over again, then they will produce the exact symptom they are supposed to cure.
It is a complex system.
Duck liver in physical form is not; you can have an ounce a day without producing "symptoms" but taking a kilo a day and you are on..
mentholatum is not the best antidote; real camphor is the thing. If no reaction the homeopatics probably wasnt causing this.
Another antidote to homeopatics, that I have used a few times is Sulphur, 200 C, taken ONCE.