He may have high blood pressure. He may be having symptoms of a TIA or a stroke.

What causes nosebleeds?

The most common causes are dryness (often caused by indoor heat in the winter) and nose picking. These two things work together--nose picking occurs more often when mucus in the nose is dry and crusty.

Other, less common, causes include injuries, colds, allergies or cocaine use. Children may stick small objects up the nose. Older people may have atherosclerosis ("hardening of the arteries"), infections, high blood pressure and blood clotting disorders, or they may be taking drugs like aspirin that interfere with blood clotting. The cause of nosebleeds often can't be determined.

http://familydoctor.org/132.xml

Since he is also having the droopiness in his face, I would suspect a stroke resulting from high blood pressure.

You really need to have him evaluated as soon as possible. This can rapidly get worse and cause severe disability.

Please get him to the ER.

Kerry