Artemisinie and lung cancer

dear Dr. Saputo My father 81 years old. he was find out lung cancer this April. Grade 4. adenocarcinoma of theprostate.and with sarcoma. _ Non small cell tumor .he cancer metastasis to bone and back bones. he took radiation treatment,and Gen inspection report showes a target ERBB2 (40)%, now taking AFATINIB for one month. we want to give him Artemisinie as I head that it works. can you suggest us how many capusle or which dosage shall we give him? can artemisinie control this type lung cancer? any sucessful case? thanks a lot for your help Laurence )