My 9 year old daughter woke up two days ago with a slightly swollen right  cheek, then she woke up yesterday with a slightly swollen left cheek now tonite i looked in on her and her top lip is swollen what is causing this.  (All the swelling in her cheeks went down within an hour after I made her gargle with warm water and salt)
Hi... Thank you for consulting in Chat Doctor. By what you quote it should be an urticaria or a simple skin allergy. You can use HY Chat Doctor.  Most important thing to be remembered is that it has a propensity to recur (called as second crop) within 10-14 days. If this happens, you can start using the same medicine, but I suggest you get the kid evaluated with your pediatrician. Hope my answer was helpful for you.  I am happy to help any time. Further clarifications and consultations on Chat Doctor are welcome. If you do not have any clarifications, you can close the discussion and rate the answer. Wish your kid good health.