I gave my son a piece of chocolate with almonds about 3
Hello, Welcome to Chat Doctor forum. Tree nuts are frequent causes of allergy in child Chat Doctor. Your suspicion is most likely true as an allergy frequently presents as rash as described.However, please remember that if the rash is worsening, or he develops symptoms like breathing difficulty, swelling of tongue, high grade fever, vomiting, decreased urine or bleeding from any site then you should seek prompt consultation with his doctor. Since Ben