


Dr Bryan McDonald
Consultant Dermatologist
-
Male genital dermatology / Penile dermatology problems
-
Medical dermatology treatment: acne vulgaris; eczema; psoriasis; vitiligo; rosacea; boils; hidradenitis suppurativa (HS)
-
Skin surgery (biopsy, shave and excision), cryotherapy and steroid injections
Acne Vulgaris Specialist Dermatologist in London
Acne vulgaris is one of the most common skin conditions, affecting teenagers and adults alike. While many people try over-the-counter products or GP treatments, persistent acne often requires specialist assessment to prevent scarring and long-term skin damage.
Dr Bryan McDonald is a Consultant Dermatologist in London with extensive experience in treating acne at all stages, from mild persistent breakouts to severe cystic acne and acne scarring.
What is acne vulgaris?
Acne is an inflammatory condition of the hair follicles and oil glands, leading to blackheads, whiteheads, inflamed spots, and sometimes painful cysts. Acne can affect the face, chest, back, and shoulders.
Symptoms of acne
-
Blackheads and whiteheads
-
Red inflamed spots
-
Painful cysts or nodules
-
Oily skin
-
Acne scarring or pigmentation
When should you see a dermatologist?
-
Acne not responding to creams or antibiotics from your GP
-
Acne causing scarring or marks
-
Adult acne that keeps returning
-
Severe or painful acne
-
Considering isotretinoin (Roaccutane)
How I assess acne
Your consultation includes:
-
Assessment of acne severity
-
Review of previous treatments
-
Discussion of hormonal or lifestyle factors
-
Evaluation of any scarring
Treatment options I offer
Treatment is tailored to severity and may include:
-
Prescription topical treatments
-
Oral antibiotics
-
Hormonal treatments where appropriate
-
Isotretinoin (Roaccutane) under specialist supervision
-
Advice for preventing acne scarring
FAQs
1. What causes acne?
Blocked hair follicles, excess oil, bacteria, and inflammation. Hormonal changes can worsen it.
2. Do over-the-counter creams work?
Mild acne may respond, but persistent or cystic acne usually needs prescription treatment.
​
3. Can acne cause permanent scars?
Yes, if untreated. Early specialist intervention reduces risk.
​
4. Is Roaccutane (isotretinoin) safe?
Yes, under specialist supervision, with regular monitoring.
​
5. How long before I see improvement?
Typically 6–8 weeks for noticeable improvement; full results may take months.
​
6. Do I need Roaccutane (isotretinoin)?
Only certain types of acne require it. Many patients can respond to other treatments.
7. Can acne come back after treatment?
Good long-term plans reduce recurrence.
Book a consultation
If acne is affecting your confidence or leaving marks, you can book a consultation with Dr Bryan McDonald for a personalised treatment plan.