There is a myth that herbal drugs, mostly used in Ayurvedic mode of medical treatment, have no kind of any side effects. The latest study shows that this too has side effects causing kidney disorder, even failure, and bladder cancer, besides asthma and arthritis. Herbal medicines, say the researchers, contain aristolochic acids and they are the cause of aggravating the ailment to the point of cancer. There are majority of people in India having a strong belief that the ayurvedic treatment does not cause any side effects and that is most safe a medical alternative. Be it any treatment, ayurvedic or homoeopathic, as against allopathic one, how come a treatment can be without an adverse impact if it is beneficial. This is the universal law that if there is any thing that is good, it is bound to be equally bad. This is a natural cycle and no good can be there unless it is also bad. Sarvantes (sic), a great thinker, held the view that ‘most beautiful things in the world are equally worst’, and so has to be the theory in the case of herbal medicines too. Nothing can go against Nature.