青色光療法後に現れる発赤はどのくらい続きますか?
How long the skin will be red after blue light therapy depends on how strong the treatment is and what skin type you have. But here is a general rule: Typical Redness DurationMild At-Home Treatment (LED masks, ハンドヘルドデバイス): 0–2 hours (usually no lingering redness). Professional treatment (at a dermatologist or clinic): A few hours […]
