It is very interesting the question, it is always interesting to try new alternatives, remember that penicillin was discovered by chance, who knows what we do not know yet and may have a potential
There is a species of viruses, RIGAVIRUS (Riga, Latvia) which is effective against melanoma cancer.We must try find out species of viruses against bacteria and other type of cancer.
At present , light can be divided in 500 waves and as a fingerprint there is spectral signature unique for any material. When ther light will be divided in 5.000 waves, then the diagnosis and therapy will be completely made at energy level without any medicine just with light beam. On the other side form information channel in the body through transfer of information, all the pathologies in the body and the therapey could be transfered as information.