A kitten with phlegm and throbbing in its throat may be caused by a cold, pneumonia, bronchitis, pharyngitis, or the ingestion of foreign objects. It is best to first confirm whether the kitten has ingested foreign objects. If the kitten has been ingested by foreign objects, If it is stuck in the throat, the kitten needs to be removed immediately to prevent the cat from suffocating to death; if it is not a foreign object, observe whether the cat has other symptoms, and then send the cat to a pet hospital to check the cause of the disease, and then carry out targeted treatment to avoid delaying the condition.