Thuya occidentalis homeopatic granules, 3 gr/ 3x / day
Don't just take my word for it, do your homework as doses depend of many things. But this is what I'd do for myself or loved ones. Good luck!

here in america they dont take kindly to finding iodine in people because they think it is to cover up drugs. i dont know how that applies elsewhere.

if you want to fortify him before hand and detox after - ozone. ozonated water, ozonated olive oil and ozone insulfation (rectal).

medical grade, of course. bottled oxygen, not from a concentrator.

http://www.ozonegenerator.com/ozone_generators/ozone_generators.php

http://www.lifeworkswellnesscenter.com/ozone-therapy/detoxifying-cleaning-healing-your-body-with-ozone-therapy.html

https://www.youtube.com/watch?v=DLAghL_klJ8

https://www.youtube.com/watch?v=bclDh29jC14

https://www.youtube.com/watch?v=m9-oGcv-ftQ

https://www.youtube.com/watch?v=tkjwvoTi950

https://www.youtube.com/watch?v=_gLyDsmndrk