Hi, Thank you for your query on Healthcare Magic. Your child seems having food allergy to some foods. I advise you to be watchful and note a diary by carefully examining the food types to which she is developing the hives or allergic symptoms, so that those can be eliminated from her diet. Identification and elimination of the particular food is the imortant action. Whenever the child develops hives, you can apply calamine lotion externally , and for itching you can use a prescribed oral antihistamine. Avoid cabbage as she developed reaction to this. For fever you can give Tylenol in prescribed dosage. Give sips of oral rehydration solutions like Pedialyte to prevent dehydration. Consult your Pediatrician for furthe assessment and the specific advise. Hope I have answered your query.