My Son Is 16, In The Last Year Has Been

my son is 16, in the last year has been diagnosed with celiacs disease as well with ulcerative colitis. It has been almost one full yr of living with the symtoms. He has had 4 colonoscopies plus other test as well. He has been on an infusion of Remicade and then switched to Entyvio. Still the results of the medication have not shown any improvement to his health, and now the drs are wanting to talk about removing his colon..... Keep in mind he is 16, what was you doing at that age? Ok this boy has had a tough life fighting, asthma, Allergies, lymes disease as well, just wondering if anyone has any good thoughts of a give'er a try remedy to help him out!!