Teething phase causing baby lose appetite

My baby is just getting well from fever for almost 4days. And now he is facing a teething phase causong he dont want to eat anything. I did try to gave him a finger food, homemade cookies, porridge with different texture and different ingredients, drink less water, less milk and im worried right now as sooner he will be having an appointment 9months this month. please suggest me anything so my baby will be eating his meal. almost crying right now!