My employer is not allowing me to go to my home country for treatment. What to do?

If I have a reference letter from my doctor, can I go for treatment?

You need approval from your employer to take annual leave.

You can take sick leave if the doctor issues you sick leave and then travel.

Sick leaves are not objected.

A reference letter is not enough?

No, a sick leave certificate is important if the matter goes to court.

If not, is it enough to go for treatment?

If you have enough documentation for your treatment, it will definitely help.

No.

If treatment is taken, the hospital in your home country can also provide a sick leave certificate.

Can a hospital in my home country can provide a sick leave certificate to get treatment there from here?

Yes, along with all the treatment documents.

I don't have any documents because I can't go for further treatment due to financial issues and I don't have insurance.

Then, you require approval from the employer to avail of annual leave.