Who should not bathe in Epsom salts?

September 22, 2025 •

4 min read

Though often touted for its therapeutic properties, not everyone should partake in an Epsom salt bath. This guide will detail specific health conditions and circumstances where soaking in magnesium sulfate could pose a risk to your health. While many enjoy the purported benefits, it is crucial to understand when caution is advised.

Quick Summary

People with severe skin conditions like open wounds, infections, or burns should avoid Epsom salt baths, as should individuals with serious kidney or heart disease, diabetes, or those who are pregnant without a doctor's clearance. It is important to consult a healthcare provider, especially if you have pre-existing health concerns.

Key Points

Skin Damage: Do not bathe in Epsom salts with open wounds, severe burns, or infections to avoid irritation and infection risks.
Kidney Disease: Individuals with compromised kidney function should avoid Epsom salt baths due to the risk of magnesium accumulation in the blood.
Heart and Blood Pressure Issues: People with heart conditions or low blood pressure should consult a doctor, as hot baths can affect blood pressure and heart rate.
Pregnancy: Pregnant women should check with a doctor first, as hot baths and potential magnesium effects need careful consideration.
Diabetes: Diabetics should be cautious, especially with foot soaks, as Epsom salts can dry the skin and increase infection risk.
Ingestion Dangers: Never drink Epsom salt unless directed by a physician, as it can cause serious side effects like diarrhea and magnesium toxicity.
Test for Sensitivity: For sensitive skin, always do a patch test before a full bath to check for irritation or allergic reactions.

Understanding Epsom Salts and Their Use

Epsom salt, or magnesium sulfate, is a mineral compound long used in home remedies for muscle aches, stress relief, and soothing minor skin irritations. The practice involves dissolving the salts in warm water and soaking for a set period. However, despite its widespread use, it's not a universal solution for wellness and can be detrimental for individuals with certain health conditions. The therapeutic effects are often attributed to the absorption of magnesium through the skin, though scientific evidence on the extent of this absorption is limited and debated.

Who Should Exercise Caution Before an Epsom Salt Bath?

Individuals with Skin Conditions

One of the most significant reasons to avoid Epsom salt baths is the presence of certain skin issues. The high salt concentration can exacerbate problems rather than soothe them, especially if the skin's protective barrier is compromised. Conditions that warrant avoidance include:

Open Wounds and Cuts: Soaking in salt water can cause intense stinging and irritation to open cuts, scrapes, or surgical wounds. It could also potentially introduce bacteria, increasing the risk of infection.
Severe Burns: Bathing with Epsom salts on severe burns can be incredibly painful and may worsen the burn's condition and interfere with the healing process.
Skin Infections: For active skin infections, such as cellulitis or abscesses, an Epsom salt bath is not recommended. In some cases, it can spread the infection rather than help it.
Severe Skin Inflammation: Conditions like severe eczema or psoriasis should be treated with caution, as the salts can be very drying and irritating, potentially leading to a flare-up.

People with Chronic Health Conditions

Certain systemic health issues can make Epsom salt soaks risky. The absorption of magnesium, while often minimal through the skin, can be a concern for those with compromised bodily functions.

Kidney Disease: The kidneys are responsible for filtering out excess magnesium from the body. For those with compromised renal function, an Epsom salt bath could lead to a buildup of magnesium in the blood, a condition called hypermagnesemia, which can cause serious complications like irregular heartbeat and low blood pressure.
Heart Conditions: Individuals with heart problems, especially those taking diuretics or managing fluid balance, should be cautious. A long, hot bath can affect blood pressure, and the potential for increased magnesium absorption could interfere with heart rate and rhythm.
Diabetes: People with diabetes should consult their doctor before using Epsom salt baths, particularly for foot soaks. Nerve damage and circulation issues common with diabetes can lead to a higher risk of skin irritation and foot infections, and overly hot water could worsen these conditions.
Pregnancy: Pregnant women often use Epsom salt baths for leg cramps or back pain, but it is important to first consult a healthcare provider. The concern is that a bath that is too hot could cause overheating, and the potential effects of absorbed magnesium on the body during pregnancy are not fully studied.

Infants and Small Children

Epsom salt baths are generally not recommended for infants and small children. There is limited evidence supporting its benefits for babies, and there's a risk of the child accidentally ingesting the salt water, which could lead to an upset stomach.

Potential Side Effects and How to Mitigate Them

While most people can use Epsom salts safely, side effects are possible, even for healthy individuals. Skin irritation, dryness, and allergic reactions are the most common. It is always recommended to perform a patch test on a small area of skin before a full bath. If you have any sensitivity, the area will show signs of irritation within 24 hours.

Dry Skin: To combat dryness, it is crucial to rinse off thoroughly with fresh water after your soak to remove all salt residue and apply a moisturizer afterward.
Dehydration: Soaking in warm water for an extended period can lead to sweating and dehydration. It is a good practice to drink a glass of water before and after your bath to stay hydrated.
Dizziness: The combination of a warm bath and relaxation can lower blood pressure, potentially causing dizziness or lightheadedness when standing up too quickly. Getting out of the tub slowly can help prevent this.

A Comparative Look at Epsom Salt Bath Risks


Condition	Risk Factor	How Epsom Salts Interact	Recommended Action
Severe Burns	High	Salt can cause pain, irritation, and potentially hinder the healing of damaged tissue.	Avoid completely.
Open Wounds	High	Can cause intense stinging and increase risk of infection by potentially introducing bacteria.	Avoid completely.
Kidney Disease	High	The body's inability to excrete excess magnesium can lead to hypermagnesemia, causing serious side effects.	Consult a doctor before use.
Heart Conditions	Medium	Warm water affects blood pressure; potential magnesium absorption can impact heart rate.	Consult a doctor and use with caution.
Diabetes	Medium	Increased risk of skin irritation and infection, especially with foot soaks.	Consult a doctor before use.
Pregnancy	Medium	Risk of overheating, potential hormonal interactions.	Consult a doctor before use and avoid excessively hot water.
Sensitive Skin	Low	Potential for dryness, irritation, or allergic reaction.	Perform a patch test and moisturize afterward.

Conclusion: Prioritize Safety and Medical Advice

Epsom salt baths can be a relaxing part of a wellness routine for many, but they are not suitable for everyone. It is paramount to prioritize your health and well-being by understanding the potential risks and contraindications, especially if you have pre-existing medical conditions or compromised skin. Always seek professional medical advice before trying a new remedy to ensure it is safe and appropriate for your specific circumstances. By taking the necessary precautions, you can enjoy the relaxing benefits of a bath without putting your health at risk. For further reading, consult the National Institutes of Health's article on magnesium to understand its broader effects on the body: https://ods.od.nih.gov/factsheets/Magnesium-HealthProfessional/.

Frequently Asked Questions

Individuals with diabetes should consult their healthcare provider before using Epsom salt baths. It can potentially dry and irritate the skin, especially on the feet, which increases the risk of wounds and infections.

No, it is not recommended to use Epsom salt baths if you have a skin infection, open wounds, or severe burns. The salts can cause irritation and could potentially worsen or spread the infection.

People with kidney disease have a compromised ability to excrete excess magnesium. Soaking in Epsom salts could lead to a buildup of magnesium in the body (hypermagnesemia), causing serious complications.

Pregnant women should talk to their doctor before using Epsom salt baths. While some do use them, the potential effects of magnesium absorption and the risk of overheating from a hot bath should be discussed with a professional.

If you experience skin irritation, a rash, or itchiness after an Epsom salt bath, you should stop using it immediately. For sensitive skin, a patch test is always a good precaution before a full soak.

No, an Epsom salt bath should be avoided with open wounds. The salts can cause pain, irritation, and may delay the natural healing process.

Yes, using too much Epsom salt in a bath can be harmful. It can lead to excessively dry or irritated skin and, in rare cases, could cause side effects related to magnesium absorption, such as a drop in blood pressure.

Epsom salt baths are generally not recommended for infants and small children. There is limited evidence for its benefits in children, and a risk of accidental ingestion exists.