Hello and Welcome to ‘Ask A Doctor’ service. I have reviewed your query and here is my advice.
Swelling in the face has many causes to let it happens, it may indicate
allergy factor or salt and water retention.
Kidney problems may make the face to swell, also some immunological disorders. In your question, sodium is a nutrient required by the body that, when consumed in excessive amounts, can cause swelling. This swelling can occur in the face, making that region of the body look and feel fat. Another thing to be considered is that is the swelling in one side of your face or bilateral? Sodium and water retention make it bilateral. Psychotic conditions have some elements but not severe swelling like the previous causes. What to do?
1- I suggest good diet, low salt and high water intake
2- Check for kidney function, if the condition still exists on controlling your diet
3- You may need to visit your doctor and make some labs to detect whether there is some immunological disorder or allergen that swell your face or not.
I wish that helps with all respect.