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Skin Allergy Patch Testing London | Consultant Dermatologist

Skin Allergy Patch Testing in London

Consultant‑led skin allergy test London to diagnose allergic contact dermatitis. We offer patch testing for skin allergy in Maida Vale with clear results and tailored avoidance plans — trusted across West London, St John’s Wood and Paddington.

Skin allergy patch testing at Skinhorizon Clinic, London
  • Indication: Suspected allergic contact dermatitis; recurrent/atypical eczema; occupational rashes
  • Appointment plan: Day 1 application • Day 3 first reading • Day 4/5 final reading
  • Downtime: None, but keep panels dry and avoid heavy sweating
  • Results: Consultant interpretation with written report and avoidance plan
  • Allergen panels: Metals, fragrances, preservatives, rubber accelerators, hair dyes & more

What Is Patch Testing and When Is It Needed?

Patch testing is the gold‑standard investigation for allergic contact dermatitis diagnosis in St John’s Wood and across London. Small amounts of common allergens are applied to the back using hypoallergenic panels and left in place for 48 hours before staged readings. It is different from prick testing (for hay fever or food allergy) and is specifically designed for delayed skin reactions caused by everyday substances.

How the Patch Test Works (Day 1–3)

  1. Day 1 — Application: History, selection of panels, and careful placement on clean, dry skin.
  2. Day 3 — First reading: Panels are removed; early reactions are recorded.
  3. Day 4/5 — Final reading: Delayed reactions are graded; we explain relevance, triggers and safe alternatives.

Your results are summarised in a clear report with product guidance. Where helpful, we link findings to your job, hobbies or personal products.

Common Allergens We Test

  • Metals (nickel, cobalt, chromates)
  • Fragrances & essential oils
  • Preservatives (MI/MCI, formaldehyde releasers, parabens)
  • Rubber/adhesives (thiurams, carbamates, colophonium)
  • Hair dyes (PPD), sunscreens, topical antibiotics & steroids

Book Your Patch Test

Consultant‑led dermatologist patch test in West London with clear, actionable results.

Preparation & After‑Care

  • Avoid sunbeds/sunburn for 1–2 weeks beforehand.
  • Do not apply creams on the back on the day of application.
  • Keep panels dry (no showers, swimming, heavy exercise) until the final reading.
  • Avoid antihistamines and potent topical steroids on the test area during the test days unless advised.

Results, Management & Prevention

We provide a personalised avoidance plan and product guidance based on your positives. If eczema is active, we’ll optimise treatment and may recommend internal referrals (e.g., contact dermatitis) or follow‑up reviews. Patients choose Skinhorizon Clinic allergy testing in Paddington for precise diagnosis and ongoing support.

Book Consultant‑Led Skin Allergy Patch Testing in London

Available in Maida Vale, West London, St John’s Wood and Paddington.

Call Us Book Consultation

Frequently Asked Questions

What is patch testing?
It identifies substances that trigger allergic contact dermatitis by applying allergens to the skin and reading reactions after 48–96 hours.
Is patch testing painful?
No — it’s non‑invasive. You may feel mild itch or irritation where a true allergy is present.
How long does it take?
Three short visits across 4–5 days: application (Day 1), first reading (Day 3) and final reading (Day 4/5).
Can I continue working during testing?
Yes, but avoid heavy sweating and keep the panels dry until your final reading.
Is it suitable for children?
Yes. We perform patch testing for adolescents and children where clinically appropriate.

Disclaimer: Diagnostic tests at Skinhorizon are provided only where clinically appropriate and must be interpreted by a qualified healthcare professional. Results alone do not replace a medical diagnosis, and further consultation may be required.

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