Zero therapy

The short answer

Zero therapy means temporarily stopping cosmetics and non-essential products on an irritated area of skin.

Dermatology guidance often uses the term for perioral dermatitis. The aim is to remove likely aggravators, reduce routine friction, and make the skin's response easier to read.

It does not mean refusing prescription treatment or leaving concerning symptoms unexamined.

What usually pauses

A zero-therapy reset may remove:

• makeup on the affected area
• optional serums
• exfoliating acids
• retinoids
• benzoyl peroxide
• fragranced products
• heavy balms and occlusive layers
• scrubs, brushes, and repeated cleansing

Some clinicians advise lukewarm water only for a period. Others allow a mild fragrance-free cleanser or a small amount of plain moisturiser when dryness is painful.

The exact version depends on the diagnosis. “Zero” is a memorable name, not a contest to see who can tolerate the tightest face.

Why it is used for perioral dermatitis

An evidence review^[1] found that many perioral dermatitis cases improve when cosmetics and topical corticosteroid exposure are removed. Fewer products can also prevent repeated irritation while a prescription treatment starts working.

A later evidence review^[2] identified topical corticosteroid misuse as the best-supported causative factor, while noting that the condition's biology remains incompletely understood.

That is why zero therapy often sits beside, rather than instead of, medical care.

What does not stop automatically

Do not discontinue a prescription facial steroid, inhaler, nasal spray, antibiotic, or other medicine without asking the prescriber.

Facial steroid withdrawal can produce a rebound, and the right plan depends on strength, duration, location, and the condition originally treated. The guide to steroid cream and perioral dermatitis explains what information to collect.

Prescription treatment for perioral dermatitis may continue during the product pause. Zero therapy describes the skincare environment around the treatment.

How products return

Once the skin is clearly calmer and the clinician agrees:

1. add one necessary product
2. use it consistently for several days
3. watch the same area in the same light
4. add the next product only if the first remains comfortable

Cleanser, moisturiser, and daytime protection usually matter more than optional actives. The full perioral dermatitis routine turns the reset into practical morning and evening steps.

Mads's practical read

Zero therapy is useful because it creates less noise.

It is not a diagnosis, a cure, or proof that skincare is harmful. It is a temporary way to stop feeding an uncertain rash with new variables.

If the eruption spreads, crusts, becomes painful, involves the eyes, or fails to improve, speak with a qualified dermatologist. A calmer shelf cannot replace a correct diagnosis.