Steamed pear with fritillary bulb and crystal sugar is beneficial to treating cough. Its main function is to relieve cough by clearing lung heat. If the cause of your child's cough is not in the lungs, it is estimated that steamed pear with fritillary bulb and crystal sugar will not have much effect, so I suggest you find out the cause first before further treatment.
It's best to go to the hospital for a blood test, which may be tonsillitis and upper respiratory tract infection. It's best to use anti-inflammatory drugs after checking, and it's best not to use them indiscriminately.