Suffering from dermatographism/dermatographic, urge to itch my body everywhere, scratches turn red and then swell looks like hives, its more when I am stressed or emotionally upset, when I change clothes, when I wear watch or something which gives pressure on my skin. It's been two years I am suffering fro m this and having medicines regularly (dazit, atarax). But now it seems that my body is not responding to these medicines anymore. It's getting worse day by day. I feel like scratching myself to death, it's that bad. Is there any cure for it?