Hello, After reading your query it appears that your brother is suffering from a common problem known as urticaria or commonly called as hives. It is due to the fact that our body contains certain specific white cells which are known as basophils, eosinophils ans mast cells. These cells becomes higher in number due to exposure to certain changes in food or environment and related things. Due to this these gets burst and forms the trashes all over body. In my patients with your brother s kind of problem I generally prefer to give Loratadine for 1-2 times per day. Do not worry he will be alright. All the best.