Dental allergy medicine is of no use, you can consider using the following three treatments to eliminate the symptoms of allergy: First, local drug desensitization, now very common desensitizing agent is sodium fluoride a class of drugs, can be applied to the surface of the teeth, but, need to be desensitized by a professional stomatologist. Second, you can consider laser irradiation desensitization, is currently more advanced means, however, it and drug desensitization is the same principle, are closed allergic dentin tubules. Third, drug plus laser mixed treatment of dentin hypersensitivity, the efficacy of this treatment is a little better than the first two.