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Seborrhoea Dermatitis

Seborrhoea Dermatitis
Seborrheic Dermatitis

This condition is likely caused by an overgrowth of Malassezia yeast (formerly known as, Pityrosporum ovale - a substance normally found in the skin) that triggers inflammation, causing changes in the skin. In infants, the condition is often called “cradle cap” . 

One of the characteristics of seborrheic dermatitis is dandruff, characterised by a fine, powdery white scale on the scalp. Many patients complain of the scalp itching with dandruff, and because they think that the scale arises from dry skin, they decrease the frequency of shampooing, which allows further scale accumulation. Inflammation then occurs and their symptoms worsen. 
UV-A and UV-B light inhibit the growth of P. ovale and many people report improvement in seborrhea during summer months. 
Ingredients that help include: 
  • Pyrithione zinc. Selenium sulfide;
  • Ketoconazole 1%;
  • Tar;
  • Salicylic acid.
     Salicylic acid – a leave-on exfoliant that can help soften and break down dead skin flakes, perfect for dry, itchy scalps prone to dandruff-type symptoms. This benefit also allows for other actives to absorb in more effectively as proven in the American Journal of Dermatology.  Salicylic acid has other beneficial properties- mild antibacterial effects – helpful because skin that’s dry and flaky is prone to bacterial growth . And mild infections make itchy scalps a lot more itchy.

Popular brands of shampoo with one or more of these active ingredients include  Head & Shoulders, Selsun Blue, Nizoral, Dead Sea Magik . It is a good idea to alternate shampoos. Leave the suds to sit on your scalp for a minute.
Rinse thoroughly. 



Using diluted apple cider vinegar as a final rinse may help . In vitro research suggests apple cider vinegar has antimicrobial properties that may benefit the health of your scalp. 
Try a patch test if your skin is particularly sensitive.

April 14, 2024

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