First, you need to confirm whether the cat actually has moss. If cat moss does grow, you can try using some cat care products, such as detergents, skin care products, conditioners, etc. to soften and remove cat moss. In addition, you can try some pet care products such as hair care essential oils, conditioners and skin creams to help care for your cat's skin and hair. Finally, you can regularly comb your cat's hair to make sure the cat moss doesn't grow again.

The cat's moss is red and swollen, which may be due to itching in the area where the cat grows, causing the cat to scratch, and the owner needs to bring Elizabethan ring on the cat at this time to avoid the cat's moss scratching too much, causing further infection.

Secondly, it may also be due to certain substances in the environment that make the cat allergic to it, such as some perfumes, pollen, etc., which causes redness and swelling. The owner should disinfect the home in time to keep the air circulating. If the cat at home has ringworm, the owner should pay attention to cleaning and hygiene and protect himself.