Oo normal lang yan po, lalo na sa ganitong edad! One of my mum friends said her baby was doing the same thing around that time, at sabi ng pedia namin it's just part of their development, their mouth control is still developing so ang laway ay natural na lumalabas lalo na kapag tulog. Just make sure lang na dry ang area around the mouth para hindi mag-irritate, at if you notice anything unusual like fever or difficulty feeding, that's when you check with your doctor na.