excessive sensitivity
• (n.) That mode of treating diseases, by which a morbid condition is removed by inducing an opposite morbid condition to supplant it; allopathy.
(het″әr-op´ә-the) abnormal or morbid sensibility to stimuli.
Het`er·op'a·thy noun [ See Heteropathic .] (Medicine) That mode of treating diseases, by which a morbid condition is removed by inducing an opposite morbid condition to supplant it; allopathy. 
Type: Term Pronunciation: het′ĕr-op′ă-thē Definitions: 1. Abnormal sensitivity to stimuli. Synonyms: allopathy
heteropathy, heteropathic 1. An abnormal sensitivity to stimuli. 2. Antipathy or aversion excited by suffering; opposite of sympathy.heteropathy 1. Antipathy or aversion excited by suffering; the opposite of sympathy. 2. Hyperesthesia, abnormal sensitivity to stimuli. 3. Also allopathy, a term applied to that system of therapeutics in which diseases are treated by producing a condition incompatible with or antagonistic to the condition to be cured or alleviated.