How to Make an Oatmeal Bath for Itchy Hives and Whether It Helps
An oatmeal bath is one of the most popular home remedies for itchy skin, and many people find it soothing when they have hives. It will not treat the cause of hives or stop new welts from forming, but it can make you more comfortable. This guide explains how to make an oatmeal bath, how to use it safely, and what it can and cannot do.
Do Oatmeal Baths Help Hives?
Colloidal oatmeal, which is oats ground into a very fine powder, forms a thin layer on the skin that holds moisture and may calm irritation. It is well known for easing itchy, dry skin conditions such as eczema. There is little formal research on oatmeal baths specifically for hives, so it is best viewed as a comfort measure that may take the edge off itching rather than a treatment. Most people use it alongside, not instead of, an antihistamine.
How to Make an Oatmeal Bath
- Choose your oatmeal. Use a store-bought colloidal oatmeal bath product, or grind plain, unflavored rolled oats in a blender or food processor into a fine powder.
- Test it. Stir a spoonful of the powder into a glass of warm water. It should turn milky and disperse easily. If it sinks as clumps, grind it finer.
- Run a lukewarm bath. The water should feel comfortably cool to lukewarm, never hot, since heat can make hives worse.
- Add the oatmeal. Pour in about a cup of the fine powder (or follow the product directions) while the water runs, and stir.
- Soak for 10 to 15 minutes. Gently let the water cover the affected skin.
- Pat dry and moisturize. Use a clean towel to pat, not rub, then apply a fragrance-free moisturizer while the skin is still slightly damp.
Safety Tips
- Watch your step. Oatmeal makes a tub slippery. Use a bath mat and take care getting in and out.
- Keep the water lukewarm. If heat or sweating triggers your hives, use cool water instead.
- Skip it if your hives are triggered by water. A rare form of hives, aquagenic urticaria, is set off by contact with water.
- Avoid added fragrances and essential oils, which can irritate the skin.
- Rinse the tub afterward, so the residue does not build up.
- Stop if it stings or makes the rash worse. Oat allergy is uncommon but possible.
Oatmeal Baths for Babies and Children
Many pediatricians suggest colloidal oatmeal baths for itchy skin, but ask yours before using one for a child with hives, and always supervise a child in the bath.
Other Ways to Soothe Itchy Hives
- Cool compresses on itchy areas
- Loose, soft cotton clothing
- Cooling lotions such as calamine (see cream for hives)
- Keeping nails short to limit damage from scratching
More ideas are in our guide to how to treat hives at home, and you can read about why hives itch in the first place.
When a Bath Is Not Enough
See a doctor if your hives last more than a few days, keep returning, interfere with sleep, or come with swelling of the lips, eyelids or face. Dr. Tiffany Young’s Hives Treatment Center in San Francisco provides online and in-person care for people whose hives need more than home remedies.
Emergency Warning Signs
Treat these symptoms as an emergency and call 911 if hives appear together with shortness of breath, a hoarse voice or trouble swallowing, swelling of the face, tongue or throat, a racing heartbeat, fainting, or vomiting and severe stomach cramps soon after a food, medication or insect sting. Do not wait to see whether they pass.
Frequently Asked Questions
How often can I take an oatmeal bath?
Most people can take one daily or as needed while hives are active. Because baths can dry the skin, keep them short and moisturize afterward.
Can I use regular breakfast oats in the bath?
Plain, unflavored oats ground into a very fine powder work, but whole or lightly crushed oats do not disperse well. Avoid instant oatmeal packets with sugar or flavoring.
Is an oatmeal bath better than a cold shower?
Both can ease itching. A lukewarm oatmeal bath is gentler on skin, while a cool shower is quicker. Avoid very cold water if cold triggers your hives.
Get Relief That Lasts
An oatmeal bath can ease the itch, but treating the hives themselves is what keeps them under control. Visit our hives treatment page to see the latest treatment options for your outbreak.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis or treatment. If you think you are having a medical emergency, call 911.
