Be careful with prolonged exposure if you have hair loss or seborrheic dermatitis.
In summer, when the sun is intense, not only the skin of the face but also the scalp needs protection. Exposure to UV rays for a long time can destroy the scalp as well as the hair follicle tissue where hair grows. We examined the proper scalp management against heat for maintaining the precious scalp and hair.
In general, continuous exposure to ultraviolet rays and high temperatures increases blood flow through dilation of dermal blood vessels, causes erythema, and raises skin temperature. In addition, skin aging progresses rapidly.
Professor Woon-Ha Lee of the Department of Dermatology at Inje University Sanggye Paik Hospital said, "Sunburned scalp can render scarring hair loss in severe cases." "You should wear a ventilated hat or use a parasol to block UV rays physically," he advised.
In this case, it is recommended to wear a functional product made of well-ventilated material that absorbs sweat well and take off the hat in a cool place about once an hour to ventilate. At this time, you can also lightly wet your head and neck with cold water. Commercially available cooling products can help relieve scalp temperature, but the effect is transient. Therefore, spending a long time outdoors depends only on cooling products is not advisable.
Patients with hair loss need more attention. Professor Lee Un-ha stated, "The patients suffering from severe hair loss who have little or no hair in the middle or the front part of the head have a higher risk of skin cancer when exposed to UV rays for a long time." "It is suggested to apply sunscreen to the scalp as well," he emphasized.
Patients with seborrheic dermatitis should also be alert. In summer, as the homeostasis of the scalp is shattered, the fungus that causes seborrheic dermatitis, such as Malassezia, is easy to multiply, and the symptoms of seborrheic dermatitis can become more alarming.
Professor Lee Un-ha expressed, "If seborrheic dermatitis becomes excruciating, it can cause secondary hair loss." "If you sweat a lot, wash your hair with cool or lukewarm water and manage seborrheic dermatitis by continuously using a hair loss product or medicine that suppresses fungus growth. We have to pay more attention to it," he urged.
Translated by jini Jung
