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Medical · Formula · Book recipe 9.6

Baking soda paste, compress and soak for itching, rashes and bites

Bites, stings, and contact rashes flare and itch for hours, and a baking soda paste is a reliable kitchen substitute when antihistamine cream runs out.

Member articleHandle with careWorks without power

How it works

Mix paste
Apply to bite
Or compress
Itch relief

Inside this article

What you'll need
Steps
Warnings
Storage and shelf life

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What is in this article

  • The method at a glance: mix paste, then apply to bite, then or compress, then itch relief
  • The exact numbers: spot paste, large area, compress, after, for
  • The full materials list (4 items, with grades and substitutes)
  • The 3-step method, with every measurement in the step
  • The hazard box and the caution notes: what never to mix it with and when to stop
  • Storage and shelf life for the raw compound and the finished mix
  • A printable one-page PDF of this article

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Prefer paper? This is Recipe 9.6, page 46, in Prepper's Chemical Survival Guide.

Questions this answers

Tap a question for the short answer.

How do I make a baking soda paste for bug bites?

Mix baking soda with a little cool water into a thick paste and apply it to the bite for a short while before rinsing. It works by drawing moisture from inflamed skin and cooling the surface.

Members get the exact amounts and every step.

Can I use baking soda on poison ivy?

Yes, as symptom control. It does not neutralize the irritant oil, but it draws moisture from inflamed skin, cools the surface, and soothes itching. Widespread rashes call for a soak instead of a paste.

Members get the exact amounts and every step.

What can I use for itching when I have no hydrocortisone or calamine?

A baking soda paste or compress is a useful stand-in. It draws moisture from inflamed skin, cools the surface, and mechanically soothes itching, and a moisturizer afterward helps the skin heal.

Members get the exact amounts and every step.

How long do I leave baking soda paste on a rash?

Leave it on for a short sitting, then rinse with cool water, and repeat a few times a day as needed. Stop and reassess if swelling, redness, or pain gets worse afterward.

Members get the exact amounts and every step.

Keep going

Read nextBaking soda for body care (pH, muscles, teeth, odor)Baking soda doses and methods for stomach acidity, muscle recovery, oral care and underarm odor, plus why it is not a joint pain remedy.Medical · Guide

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Medical · FormulaSource: Prepper's Chemical Survival Guide, Recipe 9.6, p. 46 · Last reviewed 2026-09-18

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