Surgery may remove a brain tumor. If a stroke is the cause, the only treatment may be physical therapy to improve function as much as possible. All medications have possible side effects. These may include allergic reactions , stomach upset, and headaches. Particular side effects depend on the medicatiions used.
Any surgery carries a risk of bleeding, infection, and reactions to any pain medicines used.
Specific side effects depend on the surgery being done. Treatment may be short-term or lifelong. Those with Huntington chorea , for example, may need treatment and care for the rest of their lives. Those who drank too much alcohol may need no further treatment once the alcohol leaves their system. Monitoring depends on the underlying cause.