The Photodermatology Unit attends to patients with photodermatoses or "sun allergy". Patients are evaluated based on their medical history, physical examination, phototesting and laboratory investigations. Dermatological conditions treated with various phototherapy or "light therapy" modalities include psoriasis, mycosis fungoides, vitiligo, atopic dermatitis, pityriasis lichenoides, eczema of the hands and feet, morphoea, uraemic pruritus, acne and skin cancer.

In phototherapy and photochemotherapy, both UVA and UVB may be used in combination with oral medications such as Acitretin (a retinoid or Vitamin A medication) and Methotrexate. Combination treatments increase the effectiveness in clearing psoriasis. ReNBUVB refers to the combined use of Acitretin and narrowband UVB phototherapy. Similarly, RePUVA is the combination therapy of Acitretin and PUVA photochemotherapy. These 2 combination modalities are very effective for the treatment of generalised and severe plaque psoriasis. They are generally recommended for those who fail to respond to NBUVB and PUVA alone. Acitretin enhances the therapeutic effects of NBUVB and PUVA and reduces the number of phototherapy treatment sessions and the cumulative UV doses.

The Phototherapy division of the Photodermatology Unit provides the following phototherapeutic modalities :

Narrowband UVB phototherapy
UVA/Narrowband UVB combined phototherapy
Systemic PUVA photochemotherapy
Bath PUVA photochemotherapy
Soak PUVA photochemotherapy
Paint PUVA phototherapy
UVA1 phototherapy
Excimer lamp targeted phototherapy
MultiClear targeted phototherapy
Levia targeted phototherapy
Photodynamic therapy
Omnilux Blue phototherapy

The Photodiagnostic division of the Photodermatology Unit provides the following diagnostic methods:

Phototesting
Photoprovocation testing
Photopatch testing
Systemic Drug Photochallenge