ABSTRACT
With an aim to determine minimum erythema dose of narrow band UV-B, 30 subjects, 20 with type IV skin and 10 with type V skin were subjected to graded incremental doses of 311-Narrow band UV-B phototherapy cabiner by Daavlin. Barely perceptible erythema 24 hours after exposure was taken as MED. 33.3% developed erythema at 745 mj, 26.6% at 620 mj, 23.3% at 1075 mj, and 10% at 1290 mj. The average MED for narrow band UV-B exposure for type 1V skin was 600 mj, [range 5515-755 mj] and for type V skin 1100 mj {range 895-1290 mj}. Better therapeutic response can be obtained by giving approximately 360-450 mj as initial irradiation dose for type 1 V skin and 600-825 mj for type V skin.
ABSTRACT
One hundred and twenty patients with tinea versicolor who attended the outpatient department of Dermatology, K.M.C Hospital, Mangalore were studied with reference to their clinical features, age and sex distribution, relation to climate and personal habits. The disease was commonest among the age group of 21-30 years (30%). It was found to be distributed predominantly over the neck (71.6%), chest (58.3%) and back (70%). Inmost of the patients, lesions were observed first and also aggravated during summer months. One fourth of the patients either had systemic diseases or were on immuno-suppressant drugs. The disease was continuous in spite of taking treatment in 21.6% of patients. 38.3% of patients gave a positive family history. Even though the disease is resistant to treatment, avoiding the predisposing factors like increased sweating, sharing the towels and clothes, malnutrition, synthetic clothings will help to control the disease.
