Poison ivy, oak, and sumac facts. 1  Poison ivy, poison oak, and poison sumac are plants than can cause an itchy rash upon contact. 2  A substance called urushiol, found in these plants, causes the rash. 3  The rash is not contagious.  The rash usually disappears in one to three weeks.
Following is a list of causes or underlying conditions (see also Misdiagnosis of underlying causes of Tremor) that could possibly cause Tremor includes: 1  Parkinson's disease. 2  Drug-induced tremor. 3  Parkinson disease 8 - tremors.  Parkinson disease 13 1  - tremors. Neuhauser-Daly-Magnelli syndrome - tremors.  Multiple endocrine neoplasia - Tremors.
Some degree of tremor is normal in everyone. Sometimes something can go wrong with parts of the brain involved with movement, such as the basal ganglia or the cerebellum. Tremor can be caused by diseases like multiple sclerosis, stroke, and neurodegenerative problems like Parkinsonâs disease . It can also be caused by drugs like alcohol, amphetamine, and steroids. Problems that affect the entire body, such as thyroid disease or liver failure, can cause tremor as well.