Please help / antifreeze leak

Ok,
I got myself a really good mirror that extends and put light under the car and along side the engine, and found that there is no antifreeze coming from the back of the engine, nor from the stud for the exhaust manifold. The drip is coming from the bottom edge of the head where it meets the block. It looks like it is right near the last head bolt. But again no white smoke in the exhaust no antifreeze in the oil and no oil in the antifreeze. There is no fluid coming from the side of the head, just at the bottom in the corner, and its a drip every five to eight seconds. Is it possible the head bolt needs sealant? Could it be that simple of a fix? If this is not the case then the head I guess needs to be pulled again.