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.
Medications or Substances causing Hand tremors. Medications or substances causing Hand tremors. The following drugs, medications, substances or toxins are some of the possible causes of Hand tremors as a symptom. This list is incomplete and various other drugs or substances may cause your symptoms (see Hand tremors). Always advise your doctor of any medications or treatments you are using, including prescription, over-the-counter, supplements, herbal or alternative treatments.