A medical waiver permits an immigration applicant to be allowed into, or remain in the United States despite having a health condition identified as medical grounds of inadmissibility. Terms and conditions may be applied to a medical waiver on a case-by-case basis. Applicants can apply for a waiver if: Applicant is Spouse or unmarried son or daughter or the minor, unmarried adopted child of a U.S.Citizen or Legal Permanent Resident(LPR); or Applicant has a son or daughter or lawfully adopted child who is a U.S.citizen or LPR; or Applicants are eligible for classification as a self - petitioning spouse or child(including your derivative children) because of abuse.