In the case of illness or injury, a military person is sent to the nearest medical facility, where they can provide appropriate assistance. It is there that he or she must officially undergo treatment.
If you are being treated in a military hospital, you need to write a report in the name of the head of the hospital, because during the treatment you are under the authority of the latter. There must be reasons for this (for example, lack of necessary equipment or specialists). In case of refusal to transfer to another hospital, you have the right to appeal it.