Need suggestions for better treatment.

On 17 april my 15 years old brother met with an accident. He was riding bike and disbalanced it and severely injured. As this incident happened he became unconscious. He didn't get any fractures on his body , some minor scratches on elbow and leg area but got broken his mouth inner area. It's been almost 11 days he is still unconscious, from the first day he does hand and leg movements,some times opens eyes and tries to move neck . Doctor is saying that there is swelling in his mind and some blood clots are there. And they can't say till what time he will be conscious. Now we are being hopeless as condition is almost same from first day and don't know what treatment they are doing in order to remove blood clots and make him conscious. I will be very thankful if anyone out there suggest me what I need to do in this situation , should I take him to better hospital or believe in what they are saying and wait .