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Dr.Bandage enjoys a breakthrough of changing colors when needed. When this bandage is used too long, its layer will turn dark due to its long exposure in oxygen. And Additionally, when the wound is infected, the cotton in the center of this bandage will change into blue under the affection of PH value to remind you to change it. Thanks to Dr.Bandage,we get the most proper time to change the bandage and we can receive the instant alarm to have a further therapy.
Xiaoye Xing Yiyao Zhang Dongyang Lin Kexin Nie