In other people, control of diabetes or other systemic disorders may be needed. A person with depression often needs medications to treat the condition. Those with cancer may need surgery, chemotherapy , or radiation therapy . All medications and surgeries have possible side effects. For instance, antibiotics may cause allergic reactions and stomach upset.
Surgery carries a risk of bleeding, infection, and allergic reactions to anesthesia .
If the drowsiness goes away, a person may or may not need further treatment. For instance, those with kidney failure need further treatment even if their drowsiness goes away. Those with serious diseases, such as end-stage cancer , may die if treatment is unsuccessful. Any new or worsening symptoms should be reported to the healthcare provider. The cause of drowsiness may or may not need monitoring.