The common manifestations of sensitive skin are: 1, dry: the corneal water content is reduced . 2, redness: the skin surface sebum content is reduced, especially the ceramide content is reduced, the skin barrier function is reduced, by external stimulation capillary dilation, redness or redness appears . 3. Elevated sensitivity: burning, swelling, itching . 4. Fragile: storm skin, inflammation, etc. Sensitive skin first aid methods: 1, stop using irritating cosmetics and skin care products . 2, the use of medical skin care products moisturizing (spray, moisturizer, mask) . 3, hypersensitive period (redness and fever) can be iced to relieve . 4.Outdoors, pay attention to sun protection, wind protection . 5, the appearance of inflammation and papular rash can be under the guidance of the doctor to use drugs. 6.The best way to go to a medical cosmetic institution to see a doctor for anti-allergy treatment after the condition allows. Amax classic anti-allergy treatment: (1) cold spray, wishpro drug introduction, anti-allergy mask and other immediate anti-allergy. (2) NIR or RF to thicken the skin and repair the skin barrier function. (3) DPL500 or photon 540nm to remove redness.