Ok if my face swelling is from allergies then why did it make my eye droop down and my lip nose moved a little to the left also i'm pregnant can it harm him?

Seek immediate help!: An acute allergic reaction such as this may need immediate treatment. Seek immediate medical help.

What you: Just described is an allergic reaction - facial swelling with lips and nose deviated to the left and drooping of the eye. Immediate medical attention if with respiratory symptoms. Just the same , please call your OB to recommend meds as he knows your medical history best. In the meantime, you can continue your Benadryl (diphenhydramine) since you are already taking it.