Treatment experience overview, n=1094 cases
| Type | Treatment | Ever tried | Among those who ever tried…. | |
| Has at least partially alleviated symptoms | Ever made symptoms worse | |||
| Antimicrobial | Antibiotics | 959 (88%) | 812 (85%) | 174 (18%) |
| Antifungals | 336 (31%) | 205 (61%) | 53 (16%) | |
| Antivirals | 280 (26%) | 156 (56%) | 25 (9%) | |
| Immunomodulatory | Oral non-steroidal anti-inflammatory drugs | 869 (79%) | 673 (77%) | 23 (3%) |
| Corticosteroids | 503 (46%) | 346 (69%) | 176 (35%) | |
| Intravenous Immunoglobulin (IVIG) | 275 (25%) | 224 (81%) | 80 (29%) | |
| Monoclonal antibody therapy (eg, rituximab) | 46 (4%) | 40 (87%) | 11 (24%) | |
| Plasmapheresis | 35 (3%) | 30 (86%) | 5 (14%) | |
| Subcutaneous Immunoglobulin (SCIg) | 22 (2%) | 9 (41%) | 9 (41%) | |
| Psychotherapy | Psychotropic medications (including selective serotonin reuptake inhibitors) | 519 (47%) | 275 (53%) | 251 (48%) |
| Cognitive–behavioural therapy | 491 (45%) | 218 (44%) | 80 (16%) | |
| Other | Supplements | 886 (81%) | 566 (64%) | 172 (19%) |
| ‘Tincture of time’ (wait it out) | 704 (64%) | 134 (19%) | 455 (65%) | |
| Diet modification | 681 (62%) | 431 (63%) | 40 (6%) | |
| Antihistamines (H1 and H2 blockers) | 631 (58%) | 389 (62%) | 72 (11%) | |
| Homeopathy | 463 (42%) | 302 (65%) | 82 (18%) | |
| Tonsillectomy | 340 (31%) | 194 (57%) | 37 (11%) | |