Here’s my latest blog post on the benefits of Epsom salt baths for MCAS and sulfur cycle dysfunction.
Who is Betsy Leighton?
I’m a writer, blogger, and healer dedicated to helping individuals reconnect with their innate peace and wholeness by healing nervous system dysregulation. My personal experience with chronic illness called Mast Cell Activation Syndrome (MCAS) shapes my work, and my content offers tools to empower those with chronic illness to improve their well-being and take charge of their health.
I created the Sacred Self-Healing Method and am a trained and certified Safe and Sound Protocol provider, an author, blogger, and A Course in Miracles Teacher. I hold a Master of Divinity in Spiritual Counseling and am a trained spiritual mentor, with certificates in sound healing, aromatherapy, nutrition, and Sacred Deathcare. I offer a self-study certificate program in the Sacred Self-Healing Method, provide spiritual counseling and coaching, courses, and supported subscriptions for the Safe and Sound Protocol.
What is MCAS?
Mast Cell Activation Syndrome (MCAS) is a chronic condition that affects all organ systems. It can cause severe, disabling symptoms every day, including potentially fatal anaphylaxis.
The common triggers for MCAS are infections, toxic exposures including mold exposure and EMFs, trauma, concussions, and stress.
MCAS often occurs with other chronic conditions like Ehlers-Danlos Syndrome (EDS) and Postural Orthostatic Tachycardia Syndrome (POTS). Managing MCAS is challenging because many healthcare providers are unaware of it, and diagnostic tests can be unreliable. Treatments include antihistamines and mast cell stabilizers in the form of medications and supplements, along with avoiding triggers. Check out this post on managing MCAS.
Benefits of Epsom Salt Baths for MCAS and Sulfur Cycle Dysfunction:
Benefits for MCAS (Mast Cell Activation Syndrome)
1. Calms the Nervous System
- Warm water activates the parasympathetic nervous system, reducing sympathetic overdrive—one of the most potent triggers for mast cell degranulation.
- Magnesium supports relaxation and can lower stress hormones that worsen MCAS reactivity.
2. Reduces Muscle Tension and Pain
- Magnesium absorbed through the skin may help relax tight muscles and improve connective-tissue comfort, reducing one of the common MCAS-related symptoms.
3. Supports Sleep Quality
- Magnesium enhances melatonin regulation and lowers cortisol at night, making sleep more restorative—a crucial factor for stabilizing mast cells.
4. Soothes Skin and Reduces Histamine-Driven Irritation
- Warm baths increase blood flow and can reduce itching, flushing, or dermatographism by relaxing the skin’s mast cells.
Benefits of Epsom Salt Baths for Sulfur Cycle Dysfunction
1. Provides Magnesium Without Adding Internal Sulfur Load
- Epsom salts contain magnesium sulfate, but most of the sulfate absorbed via skin occurs in small, gentle amounts, often easier to tolerate than oral sulfur-containing supplements.
2. Supports Detoxification Without Overwhelming the Pathway
- Sulfate absorbed through the skin can help support phase II detoxification (sulfation) without the gastrointestinal burden that triggers symptoms like bloating or gas.
3. Reduces Inflammation Associated With Hydrogen Sulfide Imbalance
- Magnesium can help lower systemic inflammation, which is often worsened when the sulfur cycle is sluggish or overactive.
4. Promotes Circulation and Lymphatic Flow
- Warm baths improve microcirculation and lymph drainage, helping clear inflammatory byproducts that accumulate when sulfur pathways are overloaded.
Combined Benefits (MCAS + Sulfur Cycle Issues)
1. Gentle, Non-Oral Support
- Baths bypass the digestive tract, reducing the likelihood of histamine release, bloating, sulfur intolerance, or chemical sensitivity reactions.
2. Improves Mitochondrial Function and Energy
- Magnesium plays a key role in ATP production, making the body more resilient and better able to process sulfur and regulate mast cells.
3. Supports Stress Resilience
- Both MCAS and sulfur pathway dysfunction worsen under chronic stress; the relaxation from warm Epsom baths helps lower total body “stress load,” reducing symptom intensity.
How to do Epsom salt baths
Here’s a straightforward, MCAS-friendly guide for how to do Epsom salt baths safely and effectively:
1. Start with the Right Amount
- Begin with ½ cup of Epsom salt for a standard tub.
- If well tolerated, increase gradually to 1–2 cups per bath.
- Sensitive individuals may need to stay at the lower end.
2. Choose a Comfortable Water Temperature
- Use warm, not hot, water.
- Hot water can trigger mast cells, increase histamine release, or cause dizziness.
- Aim for a temperature that feels soothing and relaxing—not stimulating.
3. Dissolve the Salt Fully
- Sprinkle Epsom salt into the running water to make sure it dissolves completely.
- Undissolved crystals can irritate skin or provide uneven exposure.
4. Soak
- Start with 5–10 minutes for MCAS or sulfur sensitivity.
- If tolerated, gradually increase to 15–20 minutes.
- Longer is not better—your nervous system should feel calm, not stressed.
5. Support Hydration
- Drink a glass of electrolyte water before or after the bath.
- Magnesium can improve circulation and sweating, so hydration helps prevent lightheadedness.
6. Make the Environment Calming
- Keep lights dim with a red nightlight or use candles (beeswax candles are low-toxicity).
- Avoid loud noises or bright screens.
- This enhances the parasympathetic benefits and makes the bath more grounding.
7. Rinse Off if Needed
- If you’re sensitive, rinse quickly afterward with warm water to remove any residue.
- Some people prefer to keep the magnesium on the skin—choose what feels best.
8. Notice How You Feel
- Check in with your body after the bath: Relaxed? Sleepy? Uncomfortable?
- If you feel overstimulated, shorten the next session or lower the salt amount.
- If you feel calmer and looser, you can slowly increase frequency.
9. Frequency
- For MCAS or sulfur dysfunction, 2–4 times per week is typical.
- Daily is fine if your body loves it, but consistency matters more than intensity.
The bucket theory
The bucket theory simplifies understanding symptom reactions with MCAS. Imagine your body as an empty bucket you don’t want to overflow. Reactions to various stimuli fill the histamine bucket at different rates, forming the total histamine level (how full your bucket is). More histamine means more symptoms. By managing triggers, reducing exposures, and taking medications and supplements, you can control your bucket’s level.
Know your typical symptom progression
Understanding your symptom progression during a flare is key to developing your rescue plan. This post discusses how to recognize symptom progression so you can be prepared to address them.
Get my free ebook, symptom log, and meal plan!
Want a tool to easily track your symptoms?
Check out these circadian health tools!
I’m an affiliate with Bon Charge, a company that makes tools for circadian health, and you can receive 15% off your order with my coupon code BETSYL.
Bon Charge offers tools such as yellow– and red-tone blue-blocking glasses, red light therapy devices, PEMF mats, infrared saunas, and EMF-blocking products.
Sign up for the SSP!
I’ve found the Safe and Sound Protocol (SSP) to be the most helpful bottom-up healing strategy if your nervous system has been overloaded with toxic exposures, including mold or non-native EMFs, chronic infections, concussions, stress, or trauma. The SSP is a passive listening therapy that helps heal nervous system dysregulation. Many people with MCAS and other chronic conditions have nervous system dysregulation stemming from infections, toxic exposures, concussions, and trauma. The SSP is an easy-to-use app that lets you listen to specially filtered music for 30 minutes each day as part of a 5-hour cycle. Studies show the SSP has a profound effect on mental health and chronic conditions. Here’s a short podcast describing the Safe and Sound Protocol.
You can sign up for the SSP here!
Heal your mind!
While the SSP is a bottom-up, somatic therapy for healing the nervous system, the Sacred Self-Healing Method I offer is a top-down nervous system-healing modality that focuses on cognition, attention, perception, and emotion, using the mind’s higher functions. The SSP and the Sacred Self-Healing Method complement each other and together produce lasting results. Here’s a short podcast on my self-healing practice.
I provide one-on-one in-person and remote chronic illness and caregiver coaching, as well as Sacred Self-Healing Sessions based on the Sacred Self-Healing Method, a proven, novel co-creative healing modality detailed in my Books.
Order my books!
Here’s a short podcast highlighting my five books.
My latest book, Living In The Light: Healing with Forgiveness, Sound, and Light, is all about the tools that have been most helpful for me to heal: forgiveness, sound, through nervous system retraining using the Safe and Sound Protocol, and light, through entraining my circadian rhythm with the energy of the sun. Living In The Light is available here!
Rocks and Roots chronicles my solo backpacking journey on the Superior Hiking Trail and my efforts to overcome nervous system dysregulation, gut dysbiosis, and Mast Cell Activation Syndrome symptoms to complete the 328-mile hike successfully.
The Sacred Self-Healing Method ebook is available here and in most ebook retailers!
The Sacred Self-Healing Workbook is available for purchase here!
Betsy’s first book, Sacred Self-Healing: Finding Peace Through Forgiveness, is available here
Companion Recordings
The companion audio recordings of chants, guided meditations, and sound healing demonstrations that accompany the Sacred Self-Healing Method are available for free on my YouTube channel here
What do you think?
I’d love to have your reply below!
Disclaimer
The preceding material does not constitute medical advice. This information is for information purposes only and is not intended to be a substitute for professional medical advice, diagnosis, cure, or treatment.
