Question
A 16-month-old child received the meningococcal vaccine last Thursday, and this Tuesday, a rash appeared on the right foot accompanied by fever. After the fever subsided, more rash spots appeared on both feet. Is this a drug allergy?
Answer
The diagnosis of drug rash primarily relies on clinical history, the appearance of the rash, and laboratory test results, while excluding the possibility of other diseases and conducting comprehensive evaluation and judgment. (1) Firstly, all possible allergens should be discontinued, and medication should not be continued when a drug reaction is imminent. (2) Provide favorable conditions and avoid adverse factors to help patients smoothly through the self-limiting disease process, such as bed rest, consumption of nutrient-rich diet, maintaining an appropriate temperature, and avoiding secondary infection. (3) Depending on the severity of the condition, consider using laxatives and diuretics to promote the excretion of drugs from the body. (4) Different treatment measures should be adopted based on the severity of the condition.