Hi,
You should see a doctor. Most likely you will be fine. You can try ice and Benadryl to reduce the swelling and inflamation. You may need a steroid to speed healing.
God bless.
Hello and hope you are doing well.
The swollen eyes might be due conjunctivitis which is inflammation of the thin transparent membrane which covers the eyes. Conjunctivitis can be caused by infections and noninfectious conditions. Infections can be due to viral, bacterial and chlamydial. Non infectious causes are allergies, chemicals and injury. The insect bite could have been the allergen. Sometimes swollen eyes can occur with other inflammations or infections of other parts of the eye like iris, cornea, lens etc. It's important that an element of injury needs to be ruled out so you will need to consult your primary care physician for further evaluation.
Hope this helped and do keep us posted.
No one on this forum can answer your question. You have to see a doctor.