So basically the treatment of pressure injuries is based on the size and then the stages as I told you the stages is depending on the thickness of the ulcers, whether the ulcers involved the subtube, the muscles, the bones, and so and so. But the whole principle is almost the same, basically you have to removed the dead tissue. And then you have to clean the wound, and then you prepare the wound bed, and then appropriate dressings. Regular follow up, and if the dressing- the pressure injury infected we have to treat with antibiotics as well. But for pressure injury as I said earlier, prevention is definitely the key. We have some pressure injury prevention care bundle specifically for post-stroke patient, or those patients who are immobile. So basically, that includes daily skin assessment. Especially area of the pressure points. We have to check whether is there any redness, discoloration any small ulcers that we might miss out, any pain because pain usually means there's pressure. The skin is at risk already. And then, by preventing we miss also incontinence management and also skincare. We have a principle to keep the skin clean and dry so we have to clean the skin immediately after every incontinence, as fast as possible. But then- by cleaning the means using a gentle skin cleanser. And then after cleaning, we apply barrier products. A lot of baby products in the market, but you can just use the simple one is Cavilon. Actually barrier products is just prevent the skin in contact with moisture for too long and then causing maceration, so. And then, other than that paper mattresses. Paper mattress is what we use to support the skin surfaces to reduce the pressure or even out the pressures, so that the pressure over the bony prominences could be spread out or reduced a bit. And then another would be repositioning. So keep your patient moving, basically, those patients who is bedbound. Turn them as often as possible, two hourly would be best. Yeah two hourly turning. So every turn, after two hour you turn again. Don't keep patient in left lateral position or right lateral or supine. And then those patients who can ambulate, you encourage them to move. Keep moving all the time. Because when you sit too long in the wheelchair as I told you you couldn develop pressure ulcer also. The last one, you can also always check the medical devices, and then regularly change the like- some you have to change the medical device like reposition them regularly. Don't just keep at the same place, because, like, prolonged period of time pressure injury will come, and sometimes you can also provide a dressings, below the medical device, like let's say you attach your nasal prong, you can put a cloth here or some foam dressing here to prevent the nasal prong in contact with the skin and then prolonged pressure and so and so pressure injury comes.