What should I do for enamel errosion?

Strengthen enamel. Enamel erosion is the result of acids- from your diet or from your intestinal system ( gastroesophageal reflux)- wearing away the enamel on the tooths surface. Fluoride in gels, rinses and toothpaste and mi paste may be helpful to strengthen the enamel and make it more resilient to the acid attacks.