Prepared by the MCS Survival Foundation
This guide is a simplified, patient-facing adaptation of the Canary Islands Multiple Chemical Sensitivity Care Protocol, issued by the Canary Islands Health Service. It is intended to help patients, caregivers, doctors, nurses, ambulance crews, dentists, surgeons, and hospital staff understand the environmental precautions recommended for people with Multiple Chemical Sensitivity.
The uploaded English copy appears to have been translated using Google Lens. Therefore, this guide should be described as based on or adapted from the Canary Islands protocol, rather than presented as an official English publication or a word-for-word certified translation.
Suggested website wording:
âThis patient guide has been adapted from the Canary Islands Health Service Multiple Chemical Sensitivity Care Protocol. It summarizes the protocolâs principal recommendations in accessible language. It is not an official publication of the Canary Islands Government and does not replace the original protocol or individualized medical advice.â
The protocol describes Multiple Chemical Sensitivity, or MCS, as an acquired chronic condition involving recurrent symptoms after exposure to low levels of multiple unrelated chemicals that were previously tolerated.
Symptoms may involve different organs and body systems. The severity, duration, and frequency of reactions can vary widely. Some symptoms may improve when exposure stops, while others may continue for a prolonged period.
The protocol also explains that MCS should not automatically be treated as the same thing as an allergy. It may be recorded under terms such as Multiple Chemical Sensitivity or Idiopathic Environmental Intolerance.
The protocol states that there is currently no specific curative treatment for MCS.
Care should be individualized and may focus on:
The protocol identifies avoidance of known triggers as the most effective proven measure described in the document.
New treatments should be introduced carefully and individually. When possible, two new treatments should not be started at the same time, because that may make it difficult to identify the cause of an adverse reaction.
A person with MCS should consider carrying a medical-information folder, card, or phone document containing:
The protocol recommends that MCS be clearly recorded in the patientâs medical chart and communicated to hospital staff, surgeons, anesthetists, dentists, ambulance personnel, and other healthcare workers.
Whenever possible, arrange the appointment in advance rather than arriving without preparation.
The protocol recommends avoiding the use of cleaning products, aerosols, photocopiers, printers, and similar equipment in the consultation room while the patient is present.
The patient may need permission to bring personal items that cannot safely be supplied by the medical facility.
These may include:
The protocol recommends facilitating the patientâs ability to bring their own medical equipment, food, water, bedding, clothing, and unscented hygiene products.
When the patientâs medical condition allows it, the protocol says alternatives to hospital admission may be considered.
When hospital admission is necessary:
The protocol emphasizes that patients with MCS are often knowledgeable about their illness and may provide important guidance about environmental control.
The protocol recommends strict environmental control in the patientâs room.
A sign may be placed on the door stating that the room is a chemical-free, fragrance-free, or MCS-controlled area.
The room should be prepared using the patientâs known tolerances.
The Canary Islands protocol recommends measures including:
Any infection-control requirement must still be determined by the healthcare facility. The patient guide should not instruct staff to abandon required infection-control procedures; instead, the safest tolerated alternative should be selected in consultation with the clinical team.
The protocol recommends:
The patientâs personally tolerated products may be preferable when hospital products cannot be safely tolerated.
Staff members who will come into direct contact with the patient should be informed before the patient arrives.
The protocol advises staff to:
Only essential personnel should enter the controlled patient area.
Emergency departments are especially difficult because of crowds, cleaning chemicals, perfumes, medications, disinfectants, and limited environmental control.
The protocol also recommends identifying the patient as having MCS in the emergency admission record.
The protocol lists symptoms that should be promptly communicated to the treating doctor, including:
These symptoms can have many causes. MCS must not be used as a reason to ignore or delay assessment for another urgent medical condition.
Before transport, the dispatch center and vehicle team should be informed that the patient has MCS.
The protocol notes that some patients may react to inactive ingredients, fillers, dyes, binders, or glucose-containing products. These concerns must be reviewed by a doctor or pharmacist.
Surgery must be planned jointly by the surgeon, anesthetist, nursing staff, pharmacist, and patient.
The original protocol includes detailed statements about anesthetic agents and medications. Those statements should not be turned into instructions for patients to select or refuse medication on their own. Drug choice, dose, interactions, allergies, and anesthesia safety must be decided by licensed clinicians after reviewing the patientâs history and the original protocol.
A patient-facing guide should therefore say:
âProvide the complete Canary Islands protocol to the anesthetist and pharmacist. Ask them to review the medication and anesthesia sections directly before selecting medicines.â
People with MCS may report reactions to:
The protocol contains medication-specific recommendations, but the translation should be checked against the original Spanish document before being used for clinical decisions.
Dental offices may contain fragrances, disinfectants, adhesives, plastics, acrylics, latex, anesthetics, and cleaning agents.
Before treatment:
The protocol specifically emphasizes communication with anesthesia and hospital personnel when surgery, dental procedures, prostheses, or implants are required.
â No
â Sometimes
â In public buildings
â During all medical contact
â Almost continuously
â Yes
â No
â Unsure
â MCS is clearly marked in the chart.
â Staff have been informed.
â The room has not been recently painted or renovated.
â Air fresheners have been removed.
â Aerosols and fragranced products have been removed.
â The room has been ventilated.
â Cleaning products have been reviewed.
â Fragrance-free staff have been assigned where possible.
â A private or low-traffic waiting arrangement has been prepared.
â The patient may bring tolerated supplies.
â Ask before using any medication, disinfectant, adhesive, glove, or topical product.
â Minimize unnecessary staff and room transfers.
â Permit the patientâs respirator when clinically safe.
â Listen to the patientâs known reaction history.
â Introduce new treatments one at a time when possible.
â Record any adverse reaction immediately.
â Maintain ventilation and environmental control.
â Provide written instructions.
â Document reactions and tolerated materials.
â Update the medical chart.
â Inform future providers of required accommodations.
â Return the patientâs personal equipment and supplies.
This guide:
Use this exact attribution on your website and downloadable guide:
Source and attribution:
This patient-friendly guide was prepared by the MCS Survival Foundation and adapted from the Multiple Chemical Sensitivity Care Protocol published by the Canary Islands Health Service. The source document supplied to the Foundation was an English version translated using Google Lens. This adaptation is provided for education and communication and is not an official Canary Islands Government publication, certified translation, medical prescription, or substitute for professional care. Healthcare professionals should consult the complete original protocol before making clinical decisions.
Subtitle:
Patient-friendly accommodations adapted from the Canary Islands Health Service MCS Protocol
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