What Is Mold Illness / CIRS?
Chronic Inflammatory Response Syndrome (CIRS) is a multi-system, multi-symptom illness triggered by exposure to water-damaged buildings (WDB) and the biotoxins they produce — primarily mycotoxins from mold species such as Stachybotrys, Aspergillus, Penicillium, and Chaetomium, as well as actinomycetes (bacteria), endotoxins, and other inflammatory compounds.
CIRS was formally characterized by Dr. Ritchie Shoemaker, whose research identified that approximately 24% of the population carries HLA-DR gene variants that impair their ability to clear biotoxins. In these genetically susceptible individuals, biotoxins are not properly tagged for elimination and instead recirculate, triggering a chronic, self-perpetuating inflammatory cascade.
CIRS is frequently misdiagnosed as fibromyalgia, chronic fatigue syndrome, depression, anxiety, or autoimmune disease due to its wide-ranging and seemingly unrelated symptom profile.
Common Symptoms of Mold Illness
CIRS produces a characteristic cluster of symptoms across multiple body systems:
- Neurological: brain fog, memory loss, word-finding difficulty, disorientation, headaches, numbness/tingling
- Fatigue: profound, unrefreshing fatigue; post-exertional malaise
- Respiratory: shortness of breath, chronic cough, sinus congestion, air hunger
- Musculoskeletal: joint pain, muscle aches, morning stiffness, ice pick pains
- Gastrointestinal: nausea, abdominal pain, diarrhea, appetite changes
- Hormonal: dysregulation of ADH, MSH, VIP, cortisol, and sex hormones
- Immune: recurrent infections, MARCoNS (antibiotic-resistant staph in the sinuses)
- Sensory: light sensitivity, static shocks, metallic taste
Diagnosis
CIRS diagnosis involves a combination of:
- Visual Contrast Sensitivity (VCS) test — a validated screening tool; biotoxin illness impairs contrast sensitivity in a characteristic pattern
- HLA-DR genotyping — identifies susceptible genotypes
- Biomarker panel — includes MSH, MMP-9, TGF-β1, C4a, VEGF, VIP, ADH/osmolality, leptin, and others
- ERMI/HERTSMI-2 testing — environmental mold testing of the home or workplace
- Urine mycotoxin testing — identifies specific mycotoxins being excreted
The Shoemaker Protocol
Dr. Ritchie Shoemaker developed a sequential, stepwise protocol for CIRS that has become the foundation of integrative mold illness treatment. The steps must be followed in order — skipping steps or proceeding out of sequence reduces effectiveness.
Step 1: Remove from Exposure
The single most critical step. No protocol will work if the patient remains in a moldy environment. This requires:
- Professional ERMI or HERTSMI-2 testing of all living and working spaces
- Remediation of water-damaged areas by certified mold remediation professionals
- In severe cases, temporary or permanent relocation
- Attention to hidden sources: HVAC systems, crawl spaces, attics, car interiors, and stored belongings from moldy environments
Step 2: Binder Therapy (Cholestyramine / Welchol)
Binders interrupt the enterohepatic recirculation of biotoxins — the process by which toxins released into bile are reabsorbed in the gut rather than eliminated. The Shoemaker protocol uses pharmaceutical binders:
- Cholestyramine (CSM) — the primary Shoemaker binder; a bile acid sequestrant that binds mycotoxins in the gut
- Welchol (colesevelam) — used for patients who cannot tolerate CSM
Natural binder alternatives used in integrative protocols:
- Activated charcoal — broad-spectrum mycotoxin binder
- Zeolite — particularly effective for ochratoxin and aflatoxin
- Bentonite clay — binds aflatoxin and other mycotoxins
- Modified citrus pectin — binds mycotoxins and galectin-3 (elevated in CIRS)
- Chlorella — binds mycotoxins and supports detox
Step 3: Eradicate MARCoNS
MARCoNS (Multiple Antibiotic Resistant Coagulase Negative Staphylococci) colonize the deep nasal passages in a significant proportion of CIRS patients. MARCoNS produce exotoxins that further suppress MSH (melanocyte-stimulating hormone), perpetuating the inflammatory cycle.
Treatment typically involves BEG nasal spray (Bactroban/EDTA/Gentamicin) compounded by a pharmacy, used as a nasal rinse protocol. EDTA in the spray also disrupts the biofilm that protects MARCoNS colonies.
Step 4: Correct Antigenic Proteins (Gluten, Amylose)
Many CIRS patients develop reactivity to antigenic proteins — particularly gluten and amylose (found in grains) — that cross-react with biotoxin antibodies. An amylose-free, gluten-free diet is recommended during this phase.
Step 5: Correct ADH/Osmolality
ADH (antidiuretic hormone) dysregulation is common in CIRS, causing excessive thirst, frequent urination, and electrolyte imbalances. DDAVP (desmopressin) may be used under practitioner supervision to correct ADH levels.
Step 6: Correct MMP-9
Elevated MMP-9 (matrix metalloproteinase-9) drives tissue inflammation and blood-brain barrier disruption in CIRS. Fish oil (high-dose EPA/DHA) is the primary intervention to reduce MMP-9.
Step 7: Correct VEGF
Low VEGF (vascular endothelial growth factor) impairs capillary perfusion, contributing to fatigue and cognitive symptoms. Exercise and VIP (vasoactive intestinal peptide) nasal spray are used to correct VEGF.
Step 8: Correct Elevated TGF-β1
Elevated TGF-β1 drives immune dysregulation and is associated with autoimmune features of CIRS. Losartan (an angiotensin receptor blocker) is used off-label to reduce TGF-β1.
Step 9: VIP (Vasoactive Intestinal Peptide)
VIP nasal spray is the final step in the Shoemaker protocol, used only after all prior steps are complete and the patient is confirmed out of exposure. VIP is a neuropeptide that regulates inflammation, supports pulmonary function, and helps restore hormonal balance. It is compounded by specialized pharmacies.
Antifungal Support
While the Shoemaker protocol focuses on biotoxin clearance rather than antifungal treatment, many integrative practitioners incorporate antifungal support — particularly for patients with concurrent Candida overgrowth or ongoing fungal colonization:
- Botanical antifungals: oregano oil, berberine, caprylic acid, pau d'arco, grapefruit seed extract
- Pharmaceutical antifungals: fluconazole, itraconazole, nystatin — under practitioner supervision
- Saccharomyces boulardii — probiotic yeast that competes with pathogenic Candida
Nutritional & Mitochondrial Support
CIRS imposes a significant burden on mitochondrial function and nutrient status. Key supportive nutrients include:
- Glutathione — master antioxidant; supports mycotoxin detoxification and neurological protection
- CoQ10 + PQQ — mitochondrial support for the profound fatigue of CIRS
- Magnesium — essential cofactor depleted by chronic inflammation
- Vitamin D3 + K2 — immune modulation and anti-inflammatory support
- B vitamins (methylated) — support methylation and detox pathways
- Omega-3 fatty acids — reduce MMP-9 and systemic inflammation
Environmental Remediation Essentials
Recovery from CIRS is impossible without addressing the source of exposure. Key environmental considerations:
- ERMI testing — Environmental Relative Moldiness Index; DNA-based testing of settled dust for 36 mold species
- HERTSMI-2 — a 5-species subset of ERMI focused on the most CIRS-relevant species; score below 11 is the target for safe re-entry
- Air filtration — HEPA air purifiers in all living spaces; IQAir and Austin Air are commonly recommended brands
- Belongings — porous items (clothing, furniture, books) from heavily contaminated environments may need to be discarded
- Car interiors — frequently overlooked mold source; ERMI testing of car dust is available
Key Takeaways
- CIRS is a biotoxin-driven inflammatory illness affecting ~24% of the population due to HLA-DR genetic susceptibility
- Removal from exposure is the non-negotiable first step — no protocol works without it
- The Shoemaker Protocol provides a validated, sequential framework: binders → MARCoNS eradication → biomarker correction → VIP
- Natural binders (activated charcoal, zeolite, modified citrus pectin, chlorella) are used in integrative protocols as alternatives or adjuncts to pharmaceutical binders
- Antifungal support, mitochondrial nutrients, and glutathione are important adjuncts to the core protocol
- Environmental remediation and ongoing avoidance are essential for sustained recovery
This article is for educational purposes only and does not constitute medical advice. CIRS is a complex condition requiring diagnosis and treatment by a practitioner trained in the Shoemaker Protocol or equivalent integrative approach to biotoxin illness.
0 comments