Puffy under eye, itchy rash under arms, congested. slow onset. lasted only noon till next morning. no food allergy. i work at day care center.

Has this resolved?: Sounds like an allergy- maybe a cream or perfume/body spray/detergent or something that you touched with your fingers (then touched your eye/arms, etc.). If you are not taking other medicines and are not allergic, Benadryl (diphenhydramine) can be helpful. You should see a doctor if symptoms persist. Think about anything new you may have been exposed to- whether at the day care or at home.