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.
Both are not contagious if the urushiol oil is not spread by chance. Infections can rarely result from itching. Both plants appear similar, produce the same kind of rash and require the same treatment. It depends on where you are residing in to differentiate a poison ivy rash from poison oak rash. The resin urushiol is the causative agent of contact dermatitis. The best way to prevent such rashes is avoiding exposure to them.