Pump bottles often need a few initial pumps before they spray evenly, though instructions vary.
Look at the bottle and insert for any priming instruction. If none is given, a few test pumps away from your face are a common sense step, but the label is the guide.
The routine is four pumps once daily, about 0.60 mL. Priming pumps do not count as a serving. Shake the bottle well before each use.