Basically patients with hodgkin lymphoma are not recommended to receive live vaccines derived from viruses or live microorganisms that are attenuated (such as BCG to prevent tuberculosis, as well as MMR to prevent measles, mumps and rubella), because in people with lymphoma disease can occur immunity of the immune system, especially if he has received therapy in the form of chemotherapy, radiation therapy, and steroid drugs that can aggravate his immune system.
The diphtheria vaccine (which is usually associated with tetanus vaccine) is made of bacteria that have been killed with chemicals tau by heating. This type of vaccine has little or no immune reaction, it can not mutate into a pathogenic (causing disease) form, and can not cause a disease similar to a natural infection.
However, you are still strongly encouraged to consult and seek advice first to a physician who has treated the lymphoma you experienced before you did diphtheria immunization.
This is because the doctor is more aware of the condition and history of the development of your disease, so it would be better in considering whether or not to be immunized. So please help.