 A sizable industry has developed in Japan around services and products that help people deal with hay fever, including protective wear such as coats with smooth surfaces, masks, and glasses; medication and remedies; household goods such as air-conditioner filters and fine window screens; and even "hay fever relief vacations" to low-pollen areas such as Okinawa and Hokkaido.Some people in Japan use medical laser therapy to desensitize the parts of their nose that are sensitive to pollen.As the impact of the allergy season on the population has mounted, the Japanese government has increasingly focused attention on the issue.