Currently, there is no cure for hemoglobin variants. Treatment for certain types may involve supportive care, for example during a sickle cell crisis. The aim is to relieve pain and minimize complications. Sometimes blood transfusions are needed. Drugs are available that increase hemoglobin F, which relieves some symptoms, but research into safer and more effective therapy continues. Future treatment may include stem cell transplantation, or gene therapy to correct the mutated gene, but these will require much more research before they are considered for widespread use.
For more information on treatments, see the links listed on Related Pages: Elsewhere on the Web.