Cat dander allergies include:
1. Patients may experience an allergic reaction after inhaling allergenic proteins that adhere to sofas, carpets, or clothing.
2. When the patient came into contact with the cat, they came into contact with allergens such as dust mites and pollen attached to the cat's fur, which caused an allergic reaction. 
Be aware of the following if you are allergic to cat dander:
1. Do not allow cats into the bedroom where the owner sleeps. The absence of cat hair allergens can reduce allergy symptoms.
2. Owners should regularly clean the furniture and floors in their homes, and it is best not to use carpets that are difficult to clean cat hair from.
3. Homeowners can use humidifiers and air filters to promote air circulation in their homes.
4. Owners should bathe and brush their cats frequently to reduce allergens.
5. The owner should strengthen their own immunity.
