How to wash off the nosebleed on the sheets?

When it has just been polluted, it should be washed immediately with cold water or light salt water (hot water is forbidden, because protein is contained in blood, which will solidify and not dissolve easily when heated), and then washed with soap or 10% potassium iodide solution;

White radish juice or mashed carrots mixed with salt can remove blood from clothes;

Wipe the contaminated part with 10% tartaric acid solution, and then rinse it with cold water;

The effect of removing blood stains with enzyme washing powder is good;

If the pollution lasts for a long time, 10% ammonia water or 3% hydrogen peroxide can be used to wipe the contaminated part. You can wash it in cold water in a moment.

If it still can't be cleaned, clean it with 10- 15% oxalic acid solution, and finally rinse it with clear water.

Whether it is new or old, it can be cleaned with sulfur soap.