Suggest Remedy For Extreme Itchiness And Swelling On Hand After Insect Bite

Hi Doctor

My daughter was stung by a bee on her hand yesterday so we put aloe vera fluid from my plant on it which seemed to soothe it for the evening - besides it being itchy every now and again and a her getting a headache.
This morning however when she woke up her hand was very swollen and very itchy and her head was very sore. Took her to the doctor who gave her celestamine and Mypaid for her head. He also prescribed antibiotics - augmentin, which he advised her to take only if it didn't improve.
She can't stop scratching it and is also getting hot.
What do you suggest?