Mental harrassment

I got married five years back. Everything was ok but there was always interference of my husband's maternal uncle and his family in our life decisions. But still I was happy with my husband n I got a son who is now 3 year old. My husband fully trust his family. As we live in Chamba, Himachal Pradesh due to transfer of my husband. But in Jan 2018 we came back to Delhi for my sister wedding but my husband was not feeling well so we went hospital first. Where my In- laws and his cousin keep my outside and don't let me meet the doctor. From that day my husband's condition going to be worst day by day. Lots of tests were conducted in different hospitals. Then finally SSPE was detected which is deadly disease. His family is mentally harrassing me. Now a days, my husband is admitted in AIIMS. I m staying with him day and night. Doctors keep telling me "There is no hope n we don't have any treatment". My In laws kept me mentally torturing n my son is staying with my parents. They used nuisance words n language for me. Now I m not able to bear all this. Please help me what can I do to stop such things. I don't want to leave my husband even in such condition as I got hope from homeopath medicines. My in-laws has taken medicines from me. I don't have money even for nursing care of my husband. My parents are bearing these expenses. Please advise me.