What is a Rash?
A rash is a visible change in the texture or colour of the skin, often appearing as redness, bumps, patches, or blisters. It may affect a small area or spread across larger regions of the body.
While some rashes are mild and resolve on their own, others require professional diagnosis to prevent complications and speed up healing.
Common features of a rash include
- Redness or discolouration
- Swelling or raised bumps
- Itching or burning sensation
- Dry, scaly, or flaky skin
- Blisters or oozing lesions
Why a professional diagnosis matters: Many different conditions can cause similar-looking rashes, from eczema and psoriasis to infections like shingles or fungal skin disease. Only an expert can pinpoint the exact cause and recommend the most effective treatment.
What Causes Rashes?
Rashes have many possible triggers. Our dermatologists group them into four main categories:
1. Allergic Reactions
- Contact dermatitis from skincare, detergents, or metals
- Food allergies (e.g. nuts, shellfish)
- Medication reactions
2. Infections
- Viral: chickenpox, shingles, measles
- Bacterial: impetigo, cellulitis
- Fungal: ringworm, yeast infections
3. Inflammatory Skin Conditions
- Eczema (atopic dermatitis)
- Psoriasis
- Rosacea
4. Other Triggers
- Heat rash
- Stress-induced flares
- Autoimmune diseases such as lupus
Symptoms & When to See a Doctor
Common rash symptoms
- Persistent itching or discomfort
- Swelling and redness
- Fluid-filled blisters or open sores
- Dryness and flaking
- Pain or tenderness
Seek immediate medical care if
- The rash is spreading rapidly
- You have a fever or feel unwell
- Thereβs severe pain or blistering
- You experience difficulty breathing or swelling of the face/lips (possible allergic reaction)
- The rash shows signs of infection (pus, crusting, warmth)
How We Diagnose Rashes
At Revitalise London, our dermatology consultation includes:
- Detailed History Onset, triggers, medications, diet, and lifestyle factors
- Full Skin Examination Assessing appearance, distribution, and texture
- Diagnostic Tests (if needed)
- Skin swabs for infection
- Patch testing for allergies
- Blood tests to check immune or inflammatory markers
- Skin biopsy for unclear or persistent rashes
Our aim is to identify the exact cause so treatment can start promptly and effectively.
Rash Treatments We Offer
Treatment depends on the underlying cause, severity, and your skin type. Options include:
Topical Medications
- Steroid creams for inflammation
- Antifungal or antibacterial creams
- Soothing emollients for hydration
Oral Medications
- Antihistamines to reduce itching
- Antibiotics for bacterial infections
- Antivirals for shingles or herpes-related rashes
In-Clinic Therapies
- Light therapy (for chronic inflammatory conditions)
- Minor procedures for removal of certain lesions
- Wound care for blistering rashes
Lifestyle & Trigger Management
Weβll help you identify and avoid irritants or allergens, adjust your skincare, and develop long-term prevention strategies.
Benefits of Professional Rash Diagnosis & Treatment
βοΈ Accurate Diagnosis: Avoid misdiagnosis and start the right treatment immediately.
βοΈ Effective Relief: Get fast and lasting relief from itching, redness, and discomfort.
βοΈ Prevention: Identify and manage triggers to prevent future outbreaks.
βοΈ Expert Guidance: Receive a personalised plan from a qualified dermatologist.
βοΈ Peace of Mind: Rule out serious conditions and feel confident in your treatment.
Why Choose Revitalise London for Rash Treatment?
We combine clinical excellence with a patient-first approach. Here's why hundreds trust us:
Nathalie Emmanuel
Actress - Game of Thrones Star
Had a wonderful experience with Dr Ken and his staff with my forehead lipoma removal. Thorough in planning before the procedure and so far, l've had a great experience with aftercare. When I had any questions there was always someone available to answer them.
Our Medical Team
Meet the experienced professionals who will provide your care
Dr. Ken Otouke
Consultant Plastic Surgeon
GMC Number: 6087496
A pioneer in Plastic Surgery and specialising in Robotics, Dr Ken is a core member on the Board of Micro Surgery for the United Kingdom. Dr Ken had worked his way to the pinnacle of NHS duties but not before developing his skill set in the USA, Italy and Canada.
Dr. Nancy Abdel-Rehman
Dermatologist
GMC Number: 7679511
Dr Nancy Abdel-Rehman is a highly skilled Dermatologist with extensive experience in diagnosing and treating a wide range of skin conditions. She specialises in advanced dermatological procedures, leveraging state-of-the-art technologies such as short and long pulse lasers to deliver exceptional care.
Our Accreditations
Trusted by healthcare regulators and professional bodies for maintaining the highest standards of medical care and patient safety.
π‘οΈ Regulated & Certified Healthcare
All treatments are performed by GMC registered doctors in our CQC regulated clinic, ensuring the highest standards of safety and care.
Frequently Asked Questions about Rashes
It depends on the patient, but allergies, eczema, infections, and reactions to skincare products are frequent triggers.
Mild rashes sometimes improve with moisturising, avoiding irritants, and using over-the-counter antihistamines. But persistent or severe rashes should always be examined by a dermatologist.
Some rashes, particularly those caused by infections, can spread quickly. Getting early treatment helps limit the spread and speed up recovery.
Most do not, but scratching or severe inflammation can cause pigmentation or scarring. Prompt treatment helps prevent long-term marks.
Yes, stress can trigger or worsen conditions like eczema, hives, and psoriasis, which may appear as rashes.
If the rash is painful, rapidly spreading, blistering, or accompanied by fever or difficulty breathing, seek urgent medical care. A dermatologist can also help rule out underlying conditions.
Some rashes, like those caused by fungal or viral infections (e.g. ringworm, scabies), are contagious. Others, like eczema or psoriasis, are not. A clinical diagnosis is important.
Avoid fragranced skincare, hot water, harsh soaps, and scratching the affected area. These can worsen irritation or delay healing.
Yes, allergic contact dermatitis is a common cause of rashes. It can result from skincare ingredients, metals, latex, or certain foods or medications.
Some rashes resolve within days, while others may take weeks or become chronic. Treatment speed and effectiveness depend on the cause and your skin type.
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