It depends on the cause of the cat's hoarse voice. If it is a case of internal heat, there is no need to worry. Guide the cat to drink more water to promote metabolism and adjust the cat's diet. If it is caused by a disease, it is recommended to take the cat to the pet hospital for examination immediately to determine the cause of the disease. Afterwards, combined with treatment under the guidance of a veterinarian, it will help the cat's physical recovery. You should stay with the cat and care for it more often.