Treatment depends on the cause. For example, an infection may be treated with antibiotics. An autoimmune disorder may be treated with drugs to suppress the immune system, such as corticosteroids. People with cancer may need surgery, chemotherapy , or radiation therapy . People with a muscle injury may need to apply ice to the muscle, take pain medication and rest.
Side effects depend on the treatments used.
All medications have possible side effects. For example, antibiotics may cause allergic reactions and stomach upset. Corticosteroids can cause weight gain, a puffy-looking face, and weak bones. Surgery carries a risk of bleeding and infection. In other cases, treatment may not end.