Unusual crying, persistent high fever, and startling are three signs of severe hand, foot, and mouth disease in children. Parents need to pay attention and take their children to the doctor promptly to avoid serious complications.

Hand, foot, and mouth disease is an infectious illness caused by intestinal viruses that can lead to epidemics. Typical symptoms include blisters on the skin and mucous membranes, often accompanied by fever. If not properly cared for, hand, foot, and mouth disease in infants can pose serious risks, including death or long-term health issues.