Thanks for choosing health care magic for posting your query.
There could be n number of causes for a swollen face. It depends on her current age and how long has it been so. Still the most common causes are anemia
and renal problems. You should get a CBC and renal profile done. Also hypothyroidism
also leads to a similar problem and TSH
should also be evaluated. The findings of these results will help us in identifying the exact cause. But you need not panic as some times there may not be any apparent cause.
Hope I am able to solve your concerns.
If you need any further help in detail, I will be more than happy to help you.
Wish you good health.
Dr. Pooja Reddy MD