


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 lesion/skin cancer assessment
-
Skin surgery (biopsy, shave and excision), cryotherapy and steroid injections
-
Paediatric dermatology
Dermatology FAQs – Answers from a Consultant Dermatologist in London
Finding accurate information about skin conditions can be confusing. Dr Bryan McDonald, Consultant Dermatologist in London, answers the most common dermatology questions from patients, covering skin conditions, hair loss, procedures, and cosmetic concerns.
​
Common Questions
1. When should I see a dermatologist?
You should consult a dermatologist if your skin condition is persistent, worsening, painful, causing scarring, or affecting your quality of life. Early assessment is particularly important for hair loss, hidradenitis suppurativa, suspicious moles, or severe acne.
2. Are skin cancers painful?
Not always. Many skin cancers are painless, which is why visual changes in moles or lesions should never be ignored.
3. Are dermatology procedures safe?
Yes — procedures like cryotherapy, steroid injections, minor surgery, IPL, and laser treatments are safe when performed by a qualified dermatologist.
4. Will my treatment leave scars?
Most treatments are designed to minimise scarring. Some procedures like excisions or injections may leave small marks, which usually fade over time.
5. How long until I see results?
This depends on the condition: steroid injections for alopecia may show regrowth in 4–8 weeks; acne treatments may take several weeks; IPL/laser improvements often require multiple sessions.
6. Are dermatology treatments covered by insurance?
Many private insurance plans cover consultations, medical treatments, and some procedures. Check your policy for details, and our clinic can advise on coverage.
7. Can children see a dermatologist?
Yes. Paediatric dermatology is a recognised specialty, and children can be safely assessed and treated for eczema, rashes, birthmarks, warts, and more.
8. How do I prepare for a dermatology consultation?
Bring a list of current medications, previous treatments, photos of changes over time, and any questions you may have about symptoms or procedures.