experimental group received an 12-week tele-rehabilitation program, which included face-to-face access to silicone pads, pressure garments, splint and other tools necessary for burn recovery. The tele-rehabilitation program was used for intervention and regular follow-up.

The control group also received an 12-week follow-up, but only on the basis of face-to-face access to silicone pads, pressure garments, splint and other tools necessary for burn recovery.

Using the social networking tool WeChat, families of children with burns are educated and trained through texts, photos, voice messages, and live videos, twice a week for a total of 12 weeks

Ultrasound assessment of scar thickness, The DermaLab Combo assessment of scar Transepidermal Water Loss (TEWL), pigmentation, hydration and elasticity.

The normal skin thickness is about 0.07-1.2mm, while the thickness of hypertrophic scars increases with the severity.

The DermaLab Combo® (Cortex Technologies, Denmark) is a commercially available skin testing device. It is a high-specification device based on proven technologies. It is an easy to use and commercially available device, making it a viable option for scar assessment in both clinical and research settings.

The worse the scar condition, the greater the Transepidermal Water Loss (TEWL), the darker the pigmentation (the larger the value), the smaller the hydration, and the smaller the elasticity (the larger the value).

The health outcomes burn questionnaire (HOBQ) for infants and children 6 years of age and younger is developed by American Burn Association/Shriners Hospitals for Children.

The HOBQ has a total of 55 items, calculated on a hundred-point scale, the higher the score, the better. Consists of 10 subscale, and each item is also converted into a percentage system. For the same score, the higher the better. There are 5 items for play, 4 items for language, 7 items for fine motor skills, 7 items for gross motor skills, 9 items for behavior, 5 items for family, 7 items for pain/itching, 3 items for appearance, 5 items for satisfaction, and 3 items for concern/worry. The number of items per scale ranges from two to nine. All subscales relate to the past month,except the subscale 'satisfaction'. The questionnaire has been translated into Chinese, and the reliability and validity of its Chinese version have also been confirmed.

The Perceived Stress Scale (PSS) is the world's most widely used instrument to measure perceived stress, 14 items，its Chinese version is widely used and has good reliability and validity. Each item in the PSS questionnaire is rated on a five-point Likert scale, ranging from 0 (never) to 4 (very often). Participants are asked to indicate the frequency with which they have experienced each event over the past month.The total score on the PSS can range from 0 to 56. Higher scores indicate a higher level of perceived stress.