Hello and hope you are doing well.
Understand your predicament. Your doctor has prescribed antihistamines and anti-inflammatory medications which will help with the bee sting. The fever could indicate an infection. Check to see the site of the sting. If there is accompanying swelling, redness, discharge and pain it is most probably an infection. You may need to consult your primary care physician who will examine you and initiate appropriate therapy.
Hope this helped and do keep us posted.