The arrow through Ramallosa take you uphill in the direction of Nigrán, and at the top of the short hill is the Albergue Pazo de Pias. Turn right at the albergue.
The camino here is well indicated by arrows, and follows along a bramble of winding side streets as it makes its way uphill. At the end of a paved holloway it emerges to a small roundabout and turns left along a sidewalk and towards an elevated crossing of the highway. Avoid the urge to make a surface crossing, to your right is a highway tollbooth and drivers in the area are frequently distracted in their search for spare coins.
Turn left after crossing (effectively you have done nothing more than cross straight over the intersection) and when you get to the second roundabout the camino continues straight; the road narrows here and the town of Nigrán (set off from the camino) is to your left.