1. Use wood wax. Wood wax is a natural wood treatment agent, which can fill holes and defects on the wood surface, protect the wood surface and increase its durability. You can choose wood wax with a color similar to that of the pine wood at the bedside and apply it to the surface of the bedside with a brush or rag until all the knots are filled.

2. Use fillers. Filler is a kind of material specially used to fill wood surface defects, which is generally divided into hard filler and soft filler. Hard fillers are suitable for filling large defects, while soft fillers are suitable for filling small holes and tree nodes. You can choose a filler similar in color to the pine at the head of the bed, fill it in the knot of the tree with a scraper, and then polish it.

3. Brush wood paint. Wood paint can be coated on the surface of wood, which can not only cover the nodes of trees, but also protect the surface of wood and prolong its service life. You can choose wood paint with a color similar to that of the pine on the bed head, and apply it to the surface of the bed head with a brush or a spray gun until the knot is covered.

It should be noted that when the bedside is treated by the above method, it should be properly polished and cleaned first to ensure the smoothness and cleanliness of the bedside surface. In addition, if you are not sure how to deal with the bedside, it is recommended to consult a professional or go to the relevant building materials market first.