{"procedure":{"id":"pulsed_dye_laser","name":"脈衝染料雷射（PDL）","type":"category","family":"脈衝染料雷射（PDL）","category":"脈衝染料雷射（PDL）","price":"mid","pain":2,"downtime":2,"visible_in":2,"lasts":2,"summary":"高端脈衝染料祛紅雷射","explanation":"V-Beam Perfecta是一種595nm脈衝染料雷射,用於改善可見泛紅、血管、潮紅和紅色痘印。它最適合處理血管性膚色和炎症性泛紅,而非褐色色素或肌膚提升。","target":"明顯泛紅、血管、潮紅、紅色痘印","description":"V-Beam Perfecta是一種595nm脈衝染料雷射,用於改善可見泛紅、血管、潮紅和紅色痘印。它最適合處理血管性膚色和炎症性泛紅,而非褐色色素或肌膚提升。","detail":{"id":"pulsed_dye_laser","name":"Pulsed Dye Laser (PDL)","price":{"basis":"1 session, full face","krw_max":250000,"krw_min":110000,"varies_by":"area"},"dosage":{"unit":"sessions","options":[{"tag":"Focused","note":"Focused redness","amount":"1 session — partial (nose/cheeks)","coverage":"Butterfly zone","description":"Nose and central cheeks.","krw_typical":165000},{"tag":"Popular","note":"Standard","amount":"1 session — full face","coverage":"Full face","description":"Whole face redness.","krw_typical":220000}],"unit_explainer":"PDL is priced per session and by area (nose/cheeks 'butterfly zone' vs full face). Redness usually needs 3-5 sessions."},"header":{"one_liner":"A vascular-targeting laser for selected facial redness and superficial blood vessels.","target_tags":["Redness","Rosacea","Broken capillaries","Red acne marks"],"category_label":"REDNESS","technology_label":"595 nm PDL"},"details":{"sessions":"Usually 3-5 sessions","aftercare":"Frequently short social downtime, but redness, swelling or pigment changes can occur. Avoid unnecessary heat and sun exposure as instructed; travel is generally considered only if the skin is recovering normally.","anesthesia":"Usually none; numbing cream optional","regulatory":"One example of a 595 nm pulsed dye laser is Candela Vbeam Perfecta/Pro; vascular lesion treatment requires diagnosis, correct skin type assessment, and counselling about purpura risk.","technology":"Pulsed dye laser 585-595 nm","measurement":"Sessions / area","manufacturer":"Mainly Candela (Vbeam Perfecta / Prima); other PDL makers exist","repeat_interval":"Every 3-6 weeks","technical_specs":"595 nm; pulse durations ~0.45-40 ms (longer = less purpura); spot 3-15 mm; Dynamic Cooling Device (cryogen) epidermal cooling.","before_treatment":"Avoid tanning and self-tanner 2-4 weeks; stop strong actives a few days before; tell the doctor about rosacea triggers and medications.","safety_suitability":"Avoid with recent tan, active infection, pregnancy (clinic policy), photosensitizing drugs; caution in darker skin types (risk of pigment change). Not for brown pigment or lifting."},"recovery":{"flying":"Usually possible","makeup":"Next day (if no bruising)","alcohol":"Avoid 2-3 days (flushing)","exercise":"Avoid 1-2 days","sauna_heat":"Avoid 1 week (heat worsens redness)","back_to_daily":"Same day","common_side_effects":["Redness and swelling 1-3 days","Purpura (purple bruising) 7-10 days with higher settings","Rare: blisters, temporary pigment change"]},"references":[{"url":"https://candelamedical.com/products/vbeam-pulsed-dye-laser/","title":"Candela Vbeam PDL maker"}],"quick_facts":{"pain":"Mild-moderate (snap + cold spray)","downtime":"1-3 days redness; up to 7-10 days if bruising","results_last":"Months to years (new vessels/flushing can recur)","treatment_time":"15-30 min","results_visible":"Progressive over 2-4 weeks per session"},"alternatives":[{"name":"IPL (intense pulsed light)","catalog_id":null,"consider_when":"Mixed redness + brown spots; broader but less vessel-specific."},{"name":"Long-pulsed Nd:YAG (e.g. Excel V)","catalog_id":null,"consider_when":"Larger/deeper vessels."},{"name":"Pico Laser Toning","catalog_id":"pico_toning","consider_when":"Discoloration is brown (pigment) rather than red."}],"before_after":[],"good_to_know":["PDL treatments can use purpuric or non-purpuric settings, and these can lead to very different bruising and social downtime.","Vascular lesions need the right diagnosis, skin type assessment, and counselling about purpura risk before treatment.","The treating doctor will decide which device mode, whether your skin type is suitable, and how many sessions may be appropriate."],"how_it_works":{"steps":[{"body":"The doctor maps vessels, flushing or red acne marks and picks settings (purpura-free vs. stronger).","title":"Assess redness"},{"body":"Goggles are placed; numbing cream is optional.","title":"Eye protection"},{"body":"The handpiece delivers 595 nm pulses, each preceded by a cryogen spray (DCD) that cools and protects the surface.","title":"Laser pulses"},{"body":"Cooling and soothing cream are applied. Redness or mild swelling settles within hours to days.","title":"Cool down"}],"how_delivered":"595 nm yellow light is absorbed by hemoglobin; heat closes off small vessels which the body then clears, reducing redness.","illustration_idea":"Laser beam targeting red blood vessels under the skin surface while a cooling spray protects the top layer.","what_touches_skin":"Laser handpiece with distance guide + cryogen spray","what_it_feels_like":"Rubber-band snaps with a cold burst of cryogen before each pulse."}}}}