Are There Any Treatments To Increase Height?

Dear Sir or Madam, I would like to receive more information, regarding height increase treatments. My son is 14 yo and is 1.59 cm tall. He had cancer (neuroblastoma) when he was 1 year and 8 months old and because of the treatment he will be short. He is not HAPPY at all. Hope to hearing from you soon. Thanks and regards, Jony