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Clin Asst Prof Colin Kwok Yew Kai

Clin Asst Prof Colin Kwok Yew Kai


Senior Consultant

Changi General Hospital

Specialty: Dermatology

Conditions Treated by this Doctor:
Eczema, Melasma, Psoriasis.

Clinical Appointments

  • Senior Consultant Dermatology Changi General HospitalChangi General Hospital


Dr Colin Kwok Yew Kai graduated from medical school in 1988 and obtained his post-graduate MRCP (UK) in 1994. He subsequently completed dermatological training in National Skin Centre in 1998. He then spent nine months with the St Thomas’ Hospital (London) and Ninewells (Dundee) Hospital in the United Kingdom, training his subspecialty, photobiology.

Over the years, Dr Kwok has taught undergraduate and post-graduate students while publishing in several international journals. His current practice is in clinical dermatology with an interest in photobiology, covering the diagnosis and treatment of photosensitive skin disorders and the use of ultraviolet light and lasers in the treatment of various skin disorders.


  • FRCP (Edin)
  • FAMS
  • MRCP (UK)
  • MBBS (S)

Professional Appointments and Committee Memberships

  • Assistant Program Director - Advanced Speciality Training in Dermatology
  • Clinical Assistant Professor - Duke-NUS
  • Clinical Senior Lecturer - NUS Yong Loo Lin School of Medicine
  • Clinical Physician Faculty member - Internal Medicine, Singhealth Residency Program
  • Medical Audit Committee (CGH)


  • Ministry of Health National Day Long Service Medal, Nov 2016
  • Eastern Health Alliance Caring Award - Gold, May 2013
  • SingHealth Silver Service Award, 2012

Research Interests

  • Photobiology
  • Phototherapy
  • Psoriasis
  • Lasers


• CC Ang, YK Tay, C Kwok. Retrospective analysis of earlobe keloids treated with the carbon dioxide laser ablation or cold steel debulking surgery. J Cosmetic Laser Therapy 2013.

• YS Wang, YK Tay, C Kwok. Fractional ablative carbon dioxide laser in the treatment of atrophic acne scarring in Asian patients: A pilot study. J Cosmetic Laser Therapy 2010;12:61-64.

• YK Tay, C Kwok. A novel radiofrequency device for the treatment of rhytides and lax skin: A pilot study. J Cosmetic Laser Therapy 2009;11:25-8.

• T Lynn, YK Tay, TT Liu, C Kwok. Stevens-Johnson syndrome and toxic epidermal necrolysis: efficacy of intravenous immunoglobulin and a review of treatment options. Singapore Med J 2008;50(1):29-33.

• YK Tay, C Kwok. Minimally Ablative erbium:YAG laser Resurfacing of Facial Atropic Acne Scars in Asian skin: A Pilot Study. Dermatol Surg 2008;34:1-5

• YS Wang, YK Tay, C Kwok, E Tan. Photodynamic therapy with 20% aminolevulinic acid for the treatment of recalcitrant viral warts in an Asian population. Int J Dermatol 2007;45:1180-4.

• YS Wang, YK Tay, C Kwok. Toxic Epidermal Necrolysis Caused by Alfuzosin, an alpha Adrenoceptor Antagonist. Arch Dermatol 2006 Jul;142(7):938 .

• YK Tay, Kwok C, Tan E. Non-ablative 1,450-nm diode laser treatment of striae distensae. Lasers in Surgery and Medicine 2006 Jan:38(3);196-9.

• HW Wong, YK Tay, YK Kwok, MP Kumariasinghe. Asymptomatic Linear Plaque on the Neck. Arch Dermatol Feb 2005;141:263.

• YK Tay, YK Kwok, YS Lee. Generalized Bullous Eruption in an Infant. Paed Dermatol 2005;22(1):79-81.

• TK Tay, BP Khoo, E Tan, C Kwok. Long pulsed dye laser treatment of facial wrinkles. J Cosmet Laser Ther 2004;6:131-5.

• I Man , YK Kwok, RS Dawe, J Ferguson , SH Ibbotson . The time course of topical PUVA erythema following 15- and 5-minute methoxsalen immersion. Arch Dermatol. 2003 Mar;139(3):331-4.

YKC Kwok, AV Anstey, JLM Hawk. Psoralen Photochemotherapy (PUVA) is only moderately effective in widespread vitiligo: a 10-year retrospective study. Clin Exp Dermatol 2002;27:104-10.

• D Tran, YK Kwok, CL Goh. A retrospective review of PUVA therapy at the National Skin Centre of Singapore. Photodermatol Photoimmunol Photomed 2001;17:

• YKC Kwok, YC Giam, SH Tan, CS Sim. A Retrospective Study of Melanocytic Naevi at the National Skin Centre. Ann Acad Med Singapore 2001;30:32-7.

• Goon ATJ, Ang P, Khoo LSW, Kwok CYK, Goh CL Comparative study of phototherapy (UVB) vs. photochemotherapy (PUVA) vs. topical steroids in the treatment of primary cutaneous lichen amyloidosis. Photodermatol Photoimmunol Photmed 2001;17:42-3.

YK Kwok, I Man, J Ferguson, SH Ibbotson. The time –course of UVA erythema in skin sensitised by topical 8-methoxypsoralen. Brit J Dermatol 2000;142:1267.

YKC Kwok, YK Tay, Cl Goh, A Kamarudin, MT Koh, CS Seow. Epidemiology and in vitro activity of antimycotics against candidal vaginal/skin/nail infections in Singapore. Int J Dermatol 1998;37:145-9.

CYK Kwok, YH Leow, SK Ng, CL Goh. An update on the top ten contact allergens in National Skin Centre 1992-1996. Environmental Dermatology 1997;4(3):189-94.

CYK Kwok, Goh CL, Ong BH. Retrospective study of the epidemiology of nodular vasculitis followed up in the National Skin Centre, Singapore. Clin Exp Dermatol 1997;22:17-19.

YK Kwok, YC Giam. Anetoderma - An 8 year re view in National skin Centre. Singapore Paediatr J 1997(June);39 (2): 91-5.

• YC Giam, YK Kwok. Netherton's syndrome - A cause of Neonatal Erythroderma. Singapore Paediatr J 1997(Mar);39 (1):74-7.

YK Kwok, WK Cheong. Atrophie Blanche : A Special form of vasculopathy. Singapore Med J 1997 (Mar);38(3):123-4.

• YC Giam, YK Kwok. Case report - Phakomatosis Pigmentovascularis. Singapore Paediatr J 1996(Sept); 38(3);131-5.

• SN Tham, YK Kwok, HL Chan. Cross Reactivity In Fixed Drug Eruption To Tetracyclines Arch Derm 1996 (Sept);132;1134-5.

Research Trials