A mild burning sensation when you first apply Preparation H is common, especially if the skin is already irritated or broken. But it should fade within a few minutes. Persistent or worsening burning is not normal and signals that you should stop using the product.
Why It Burns in the First Place
Hemorrhoids involve swollen, inflamed tissue that often has tiny cracks or raw spots on the surface. When any topical product hits damaged skin, the active ingredients can sting briefly. Preparation H Maximum Strength, for example, contains phenylephrine (which constricts blood vessels), pramoxine (a local numbing agent), and glycerin. Even ingredients meant to soothe can cause a flash of discomfort on open or irritated tissue.
The witch hazel in Preparation H wipes and pads can also trigger mild stinging, redness, or dryness. Witch hazel is an astringent, meaning it tightens tissue, and that tightening effect on raw skin often registers as a brief burn.
Hydrocortisone-based formulas (the anti-itch versions) are particularly known for this. According to the NHS, you may get a slight increase in burning when you first apply a hydrocortisone treatment for hemorrhoids, but it typically lasts only a few minutes and tends to stop happening altogether after a few days of use.
What “Normal” Burning Feels Like
A reaction that falls within the expected range is brief, mild stinging or warmth right at the application site. It fades on its own within about one to five minutes. It doesn’t get worse with each application, and you don’t see new redness, swelling, or blistering around the area. If that describes what you’re feeling, the product is likely working as intended and the sensation is just your irritated skin reacting to contact.
Signs the Burning Is a Problem
The product label is clear on this point: stop using Preparation H if redness, irritation, swelling, pain, or other symptoms develop or increase after application. Burning that lasts longer than a few minutes, gets more intense over time, or spreads beyond the area you applied the cream to is not a normal side effect.
Watch specifically for:
- Burning that gets worse with each use rather than improving over the first few days
- New swelling, redness, or a rash around the application area
- Blistering or peeling skin
- Itching that intensifies instead of calming down
These patterns point toward an allergic reaction or contact dermatitis rather than routine irritation.
Ingredients That Trigger Allergic Reactions
Sometimes the burning isn’t caused by the active ingredients at all. Many hemorrhoid creams contain inactive ingredients that are well-known skin sensitizers. Lanolin (derived from wool) is one of the most common culprits. In patch testing studies of patients who reacted to hemorrhoid creams, lanolin alcohol produced strong positive allergic reactions. Parabens, used as preservatives in several over-the-counter rectal creams, are another frequent trigger.
Pramoxine, the numbing agent in Preparation H Maximum Strength, belongs to a class of local anesthetics that can occasionally cause contact dermatitis in sensitive individuals. Ironically, the ingredient designed to relieve discomfort becomes the source of it. If you’ve used the product before without problems but suddenly start reacting, this kind of delayed sensitization is a possible explanation. Your immune system can develop a reaction to an ingredient after repeated exposure.
How to Reduce Irritation
Clean the area gently with warm water and pat it completely dry before applying any product. Moisture trapped under the cream can increase irritation. Use only the amount directed on the label. More product does not mean more relief; it increases the amount of active ingredients your skin absorbs and raises the chance of side effects. Avoid covering the treated area tightly, since occlusion drives more of the product into the skin and amplifies both the intended effects and the unwanted ones.
If you’re using Preparation H wipes or pads, try pressing gently rather than wiping back and forth. Friction on already-inflamed tissue worsens the stinging. And wash your hands after application to avoid accidentally transferring the product to more sensitive areas like your eyes.
Switching Products May Help
Preparation H comes in several different formulations, and they don’t all contain the same ingredients. The ointment version relies heavily on petrolatum and mineral oil, which are among the least irritating topical ingredients available. If the cream formula burns, switching to the ointment may solve the problem entirely. Similarly, if witch hazel pads sting, a petrolatum-based ointment provides a protective barrier without the astringent effect.
If every Preparation H formula causes burning, the issue may be the severity of your hemorrhoids rather than the product itself. Tissue that is deeply cracked, bleeding, or severely swollen will react to almost any topical treatment. In that case, the inflammation needs to be addressed before a topical product can do its job comfortably. A plain barrier like petroleum jelly can protect the area while it heals enough to tolerate medicated treatments.