I have 3 pairs of Lewre pump shoes which I had them 6 years back. So far I only wore 2 pairs on and off and didnt develop any allergy. My mother in law and sister in law too wore the same batch as mine since we have them altogether at the same time. They didnt have allergies as well. Is it very recently that you bought your shoes? Very lucky that you notice and take action immediately.. Keep us update on Lewre's feedback..