Suggest Medication For Skin Allergy

I've been feeling lightheaded for about 2 1/2 weeks now. I have my blood tested last week to check for iron levels and results came back as satisfactory. I've also been feeling very tired and my mouth seems to be constantly dry. I seem to feeling better once I have had something to eat. Also since December I have developed a skin allergy that appears on my legs and underarms which is very itchy. I have seen two different GP's in a week and the first one didn't really say much and the second one said it could be a middle ear infection.