UVA protection for pigmentation and sunscreen SPF
September 8, 2026
UVA Protection for Pigmentation: What PA++++ and Boots Stars Really Mean | Expert Dermatologist Guide

Choosing a sunscreen for pigmentation is more complicated than simply selecting the highest SPF on the shelf. UVA protection for pigmentation matters because UVA contributes to immediate pigment darkening, persistent pigmentation and photoageing, while repeated small exposures can accumulate over time. Dr. Sasi Kiran Attili is a UK-trained dermatologist and board-certified dermatopathologist who assesses patients […]

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SPF 30 vs SPF 50 vs SPF 100 sunscreen comparison
September 7, 2026
SPF 30 vs SPF 50 are often compared with SPF 100, but these numbers do not simply represent percentages of UVB protection.

SPF 30 vs SPF 50 are commonly compared when choosing sunscreen, but these numbers do not simply represent percentages of UVB protection. This explanation is convenient, but it can make the differences between sunscreens appear smaller than they really are. SPF works as a biological protection factor based on the ultraviolet dose needed to produce […]

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Dermatologist examining a patient for skin signs of internal disease
September 3, 2026
Skin Signs of Internal Disease: When a Skin Problem Needs Further Investigation | Expert Dermatologist Guide

Most rashes, pigmentation changes, infections and hair problems begin and end in the skin. Occasionally, however, skin signs of internal disease can provide an important clue to changes involving blood sugar, hormones, blood fats, nutrition or other organs. Dr. Sasi Kiran Attili is a UK-trained dermatologist and board-certified dermatopathologist. This combination of clinical dermatology and […]

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Hidradenitis Suppurativa: Answer to Skin Quiz #6

The answer to the Hidradenitis Suppurativa is indeed the answer to the Photo Quiz posted last week. This is a Dermatology Quiz posted last week is indeed Hidradenitis Suppurativa. This is a disabling skin disease akin to acne of the armpits and groins but can cause large, painful boils, cysts and scars which discharge pus. […]

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How to care for baby skin?

  How often should I bath my baby? Which is the best baby cream to use? Which is the best baby soap to use? How to care for Baby skin? These are common questions new mums and dads often have for which there is not a lot of scientifically based sound data out there. The […]

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Alternative/ complementary medicine in dermatology

  Interesting article that discusses the role of Alternative/ complementary medicine in dermatology. Just confirms what we as dermatologists always knew, that there is no scientific evidence to support the role of these treatment modalities. Moreover, caution has to exercised when using these treatments, as they can often cause severe side effects.   American Journal […]

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Diagnosis of fungal skin and nail infections

Dermatologists and patients would be interested to know that the Chicago blue-KOH stain can be extremely useful for rapid diagnosis of fungal skin and nail infections. This is a simple bedside procedure where Chicago sky blue 6B (1%) is mixed with an equal volume of 10% KOH in a glass dropper bottle. A drop of […]

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Herbal/ natural remedies might not always be good for you

For those of you into herbal/ natural remedies, check out the article below, which reports someone who developed a bad blistering reaction called AGEP, after ingesting a herbal oil. As dermatologists we see hundreds of patients every year with bad skin reactions, after using various herbal/ natural products. The point is that just because something […]

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