PUVA Therapy

PUVA therapy involves ingestion of a drug called Psoralen 1.5 to 2 hours before exposure to UVA light.Interval between taking the drug and being exposed to light is held constant because peak levels of psoralen are usually reached in the skin between 1-2 hours after ingestion.Initial dose of UVA is low and is gradually increased in subsequent treatments as your tolerance to the treatment increases.
The patient is asked to stand in front of PUVA chamber.The patient is either unclothed or partially clothed ( depending on size of the area to be treated ) and made to wear UVA protective goggles,which is provided by the attendant.Male genitalia must be shielded unless the area is being treated for psoriasis.
Treatment may last for a few seconds to over 10 minutes and may vary from one treatment to the next.
Diseases where PUVA therapy is useful are --
Vitiligo, Psoriasis,Atopic dermatitis,Para-psoriasis,Alopecia areata,Pityriasis rosea,CTCL,Lichen planus,P.L.C. etc

NB-UVB Therapy

NBUVB is considered a first-line treatment for many conditions such as psoriasis,vitiligo and eczema.It is safe enough for pregnant women and children to use.NB-UVB uses a UVB narrow band lamp that emits light energy with a wavelength centred at roughly 311 nm.
Patient is made to stand in front of NB-UVB light source.he/she is unclothed or partially clothed ( depending on size of area to be treated ) and made to wear UVB protective goggles,which will be provided by the attendant.
Treatment time may last from a few seconds to over 10 minutes and may vary from one treatment to the next.
Diseases where NB-UVB therapy is useful are --
Vitiligo, Psoriasis,Atopic dermatitis,Para-psoriasis,Alopecia areata,Pityriasis rosea,CTCL,Lichen planus,P.L.C. etc