About Phototherapy
Type:Uv phototherapy Time:2016-08-01 15:13:57Phototherapy simply means treatment with light.
For treating skin disease, Narrowband ultraviolet B (UVB) light is the
most common type of phototherapy. This uses a special machine to emit
UVB light at 311-312 nm, which is the most beneficial portion of natural
sunlight for skin diseases. Importantly, it also avoids the UVA aspect
of sunlight which is very damaging to skin, and can accelerate aging and
progression towards skin cancers.
Broadband UVB phototherapy (290-320 nm), and UVA1 (340-400 nm),PUVA
(Psorlaen and UVA), are other forms of phototherapy that are used less
frequently in treating vitiligo,psoriasis,eczemas, but may be used in certain circumstances.
Phototherapy appears to work in several ways:
1.It directly reduces itch
2.It has an anti-inflammatory effect
3.It increases vitamin D production
4.It appears to help increase bacteria-fighting systems in the skin