Discussing the infectiousness of hand, foot, and mouth disease after recovery

Based on your description, it may be a rash caused by skin allergy, usually accompanied by itching and recurrent outbreaks. It is recommended to take loratadine tablets and Xiaofeng Zhiyao granules orally, and apply calamine lotion topically. Avoid contact with allergens to gradually improve the condition. It is advisable to consult a doctor for relevant auxiliary examinations to rule out fungal infections.