Homeopathy or homoeopathy is a pseudoscientific system of alternative medicine. Tredinnick supports alternative medicine including homeopathy and chiropractic. In 2015 the Federal Court of Australia imposed penalties on a homeopathic company, Homeopathy Plus! Arsenicum album is one of the fifteen most important remedies in homeopathy. Mostly attacking alternative medicines, homeopathy and chiropractors, the tone here can be rather harsh. Sawalha has suffered from psoriasis and has used homeopathy rather than conventional treatment. These include psychology, psychoanalysis, homeopathy and economics. Besides acting, he was an avid painter and a practitioner of homeopathy. Several potency scales are in use in homeopathy. It exists today as the basic postulate of classical homeopathy. This is related to the pseudo-scientific "Law of Infinitesimals," one of the principles behind homeopathy. Leopold emigrated to England, and he practised homeopathy in London. Parker was a patient of William Wesselhoeft, who practiced homeopathy. She had previously signed parliamentary motions in support of NHS funding for homeopathy. Several of the key concepts of homeopathy conflict with fundamental concepts of physics and chemistry.