@imjagat, the doctor doesn’t need to list the medications or even recommend for you to go, but it is important to include his name, the hospital’s or clinic’s name, and where. Doctor must mention the name of your relative and his or her condition.

To Whom it May Concern:

I am Doctor Hari Prasad and I am a practitioner at Bir Hospital In Kathmandu,Nepal.  My patient Ram Maya Kumari has been under my care since January 2017 up to the present day.  Ms. Kumari has the following conditions:

1. Diabetes
2. High Blood Pressure
3. Depression
4. Rheumatoid Arthritis

Under my discretion Ram Maya Kumari is taking the following preskription medicines:

1. Glyxambi Oral
2. Amiloride
3. Celexa
4. Methotrexate

It is recommended that her son Imjagat Kuikal takes care of her ailments and mental health for a better quality of life for at least the duration of January 15 to March 15.

Thank you,

Doctor Hari Parsad. 

Also write another letter, 

Sample

To Whom it May Concern:

My name is Imjagat Kuikal and I am requesting an Advance Parole document (i-131) to see my 70 year old Mother Ram Maya Kumari, she has Diabetes, High Blood Pressure, and Rheumatoid Arthritis.  For the past few years she has been visiting Dr. Hari Prasad at Bir Hospital in Kathmandu, Nepal.  I would like to take care of my mother for 90 days starting January 15 to March 15.  My mother Ram Maya Kumari is old and with all her health complications I would like to take ease her pain and assist her in any way.  In addition, she is an older person, therefore, there is a possibility that she will not be with us for long, and I would like to at least assist her while she is present.  

I am enclosing the following documents:

• Money order (or check) for the Advance Parole Document for the U.S Department of Homeland Security
• Form I-131 travel document
• 2 passport photographs
• Copy of my passport
• Copy of my employment card given by USCIS with my TPS application
• Copy of my I-797, notice of action, for my I-821
• 1 letter from Dr. Hari Prasad
• Copy of my birth certificate
• Copy of my mother’s birth certificate 
• Copy of relationship certificate
• G-1145 form

Kindly approve my application for Advance Parole

Thank you very much,

Imjagat Kuikal