Lithium is used for the treatment of bipolar disorder. Specifically, it is approved to treat manic episodes (but not depressive episodes). It is also approved as a maintenance treatment, which is a long-term treatment to help prevent episodes of mania or depression. Lithium has not been approved for treating bipolar disorder in children under 12 years old. Occasionally, lithium is also used  off-label  for treating other conditions.
A poison ivy rash itself isn't contagious â blister fluid doesn't contain urushiol and won't spread the rash. And you can't get poison ivy from another person unless you've touched urushiol that's still on that person or his or her clothing. 1  Symptoms. 2  Risk factors.
The rash caused by poison ivy, oak, and sumac is an allergic skin reaction to an oil called urushiol that is inside the plant. This oil is found in all parts of the plant, including the leaves, stems, roots, and berries. Poison ivy, oak, and sumac rash itself is not contagious. However, if oil remains on the skin or on clothing that came in contact with the plants, and the oil comes into further contact with skin, a rash may result.