Nail Disease Treatment: A Complete Guide (Kedah, Perlis & Penang)
Nail problems (masalah kuku) are more than cosmetic — thick, discoloured, crumbling or painful nails can signal an infection, a skin condition, or even an internal health issue. At Loh & Celine Skin Specialist Clinic in Alor Setar, Kedah, our dermatologists diagnose and treat nail diseases properly, for patients across Kedah, Perlis and Penang.
Think of your nails as small windows that reveal what’s happening deeper inside. A fungal invasion turns the window cloudy and yellow. Psoriasis pits and dents the glass. Nutritional or internal issues can leave lines and ridges. Because nails grow slowly, they act like a “recording” of your health over the past months. A dermatologist knows how to read these clues — and treat the real cause, not just polish over it.
Signs and Symptoms
Common signs of nail disease we treat include:
- Fungal nail infection (kuku berkulat): thickened, yellow-brown, crumbly nails that may lift from the nail bed.
- Nail psoriasis: tiny pits/dents, oil-drop discolouration, and separation of the nail.
- Ingrown toenail (kuku terbenam): pain, redness and swelling at the nail edge.
- Discolouration & lines: white spots, dark streaks, or ridges — some harmless, some needing urgent review.
- Brittle, splitting or spoon-shaped nails: sometimes linked to iron or thyroid issues.
- Paronychia: painful, red, swollen skin around the nail (infection/inflammation).


Common Nail Diseases & Their Causes
- Fungal nail infection (onychomycosis): the most common nail disease — thrives in our warm, humid climate and sweaty footwear.
- Nail psoriasis: linked to skin psoriasis; the immune system affects the nail. See our psoriasis guide.
- Ingrown toenails: from tight shoes or incorrect nail cutting.
- Trauma & bacterial infection (paronychia): from injury, biting or moisture exposure.
- Internal clues: nutritional deficiency, thyroid or circulation issues can show in the nails.
Your Nail Treatment Options 🪜
- Fungal nails: medicated nail lacquers, and oral antifungal tablets for stubborn cases.
- Nail psoriasis: topical treatments, injections, or systemic/biologic therapy for severe cases.
- Ingrown/infected nails: proper care and, when needed, a minor in-clinic procedure.
Trusted Medical References
For further reading, see the NHS guide to Fungal Nail Infection, the NHS guide to Ingrown Toenails, and the American Academy of Dermatology (AAD) — Healthy Nails.
Why Choose Loh & Celine Skin Specialist Clinic?
Led by board-certified dermatologist Dr Loh Ken Chen, we diagnose nail disease accurately and treat the real cause. We’re a trusted choice for patients across Kedah, Perlis and Penang. Explore all our skin conditions we treat.
Your Nail Treatment Options at a Glance
From accurate testing to targeted treatment — here’s how we get your nails healthy again.
Nail Testing & Diagnosis
A quick nail sample test to confirm fungus vs psoriasis vs other causes — so you get the right treatment first time.
Antifungal Treatment
Medicated lacquers and oral antifungals to clear stubborn fungal nail infections (kuku berkulat).
Nail Psoriasis Care
Targeted topical, injection or systemic treatment for pitted, discoloured psoriatic nails.
Ingrown & Infected Nails
Proper care and minor in-clinic procedures for painful ingrown or infected nails (kuku terbenam).
Frequently Asked Questions (Soalan Lazim)
Real questions we hear from nail disease patients in Kedah, Perlis and Penang.
Is nail fungus contagious? (Adakah kuku berkulat berjangkit?)
Yes, fungal nail infections can spread — between your own nails, to others via shared floors, towels or nail tools, and from athlete’s foot. Good hygiene and proper treatment help stop the spread.
Why do fungal nails take so long to treat?
Nails grow very slowly, so even after the fungus is killed, it takes months for a healthy new nail to grow out. Consistency with treatment is key — stopping early is the main reason infections come back.
How do I know if it’s fungus or psoriasis?
They can look similar, but psoriasis often causes pitting and is linked to skin psoriasis, while fungus causes thick, crumbly, discoloured nails. A simple nail test at the clinic confirms it — treating the wrong one wastes time.
When is a nail change serious?
A new dark streak or spot under a nail, or a nail change that won’t heal, should always be checked promptly to rule out something serious. It’s best to be safe and get it examined.
Can I just use over-the-counter treatments?
Mild cases sometimes respond, but many nail problems are misdiagnosed and need prescription treatment or a test first. If it’s not improving, a dermatologist can save you months of frustration.
How can I prevent ingrown toenails? (Cara elak kuku terbenam?)
Cut nails straight across (not curved), avoid tight shoes, and keep feet dry. If an ingrown nail becomes red, swollen or painful, see us before it gets infected.
Do nail problems mean something is wrong inside my body?
Sometimes. Brittle, spoon-shaped or ridged nails can reflect iron, thyroid or circulation issues. A dermatologist can spot these clues and advise further checks if needed.
When should I see a dermatologist? (Bila perlu jumpa pakar kulit?)
See a specialist for thick, discoloured, painful or deformed nails that don’t improve, any new dark streak, or nail changes alongside a skin condition. Early diagnosis means faster, more effective treatment.
Explore More (Related Guides)
Go deeper with trusted medical references and related guides.
NHS — Fungal Nail Infection
Trusted UK National Health Service guide to nail fungus.
NHS — Ingrown Toenail
How to manage and prevent ingrown toenails.
AAD — Healthy Nails
Global dermatology authority nail-care guidance.
Psoriasis Guide
Nail psoriasis is linked to skin psoriasis — read our full guide.
Skin Conditions We Treat
Explore our full range of dermatology services and condition guides.
Book a Consultation
See Dr Loh Ken Chen in Alor Setar — serving Kedah, Perlis & Penang.
About the Author
Dr Loh Ken Chen is a board-certified dermatologist at Loh & Celine Skin Specialist Clinic in Alor Setar, Kedah. He diagnoses and treats nail diseases, skin conditions, hair loss and skin cancer for patients across Kedah, Perlis and Penang, combining evidence-based medicine with careful, accurate diagnosis. He is registered on the National Specialist Register (NSR) of Malaysia, NSR No. 133112.