The child had a seizure after the high fever subsided.

Generally, high fever refers to hyperthermia. When a child develops convulsions after the fever subsides, it may be caused by physiological factors or pathological factors, such as hypocalcemia, meningitis, etc. The specific analysis is as follows:

1. Physiological Factors

During development, children often like to imitate others' movements, which might manifest as generalized convulsions. This is considered a normal physiological phenomenon and usually does not require special treatment if no other discomfort symptoms are present.

2. Pathological Factors:

1) Hypocalcemia
Hypocalcemia leads to decreased blood calcium levels, increasing excitability of muscles and nerve cells, potentially causing hand and foot twitching. Under medical guidance, medications such as Longmu Zanggu Granules, Calcium Gluconate Oral Solution, and Vitamin AD Drops can be used for treatment.

2) Meningitis
Meningitis may result from infections caused by pathogens such as bacteria, viruses, or mycoplasma, leading to acute inflammation of the meninges and spinal cord membranes. If not treated promptly in the early stages, it can cause brain parenchyma damage, resulting in symptoms such as lethargy, confusion, and convulsions. Under medical guidance, medications such as Ribavirin Injection, Ceftriaxone Sodium for Injection, and Acyclovir Injection can be used for treatment.

Besides the above causes, convulsions may also be triggered by encephalitis, epilepsy, toxic encephalopathy, and other factors. Parents are advised to seek timely medical care for their child and follow professional doctors’ guidance for effective treatment to prevent serious consequences.