Desensitization treatment is restricted to a specific age group. Generally speaking, this treatment is most effective in children between the age of five and puberty. It is less generally effective in adults, because they have a fully mature immune system.
不過，減敏療法有其年齡的限制，一般而言，五歲以上、青春期以前的兒童較適合，成年人由於免疫系統已成熟定型，效果普遍不佳。