How do I cure a bee sting from a bumble bee?

Bumblebee sting. Clean with soap ; warm water. Apply ice in 10 minute. Increments; alternating 10 on ; 10 off. Tylenol, (acetaminophen) Aspirin or Motrin for pain or Benadryl for swelling. Make a paste of 2 parts baking soda ; 1 part water ; apply. Tetanus shot is needed every 10 years. Throat, airway or tongue swelling – call 911.
Benadryl (diphenhydramine) etc. Bee stings can be painful, but unless there is a serious allergic reaction, they can be treated easily at home. Take some benadryl, tylenol, (acetaminophen) and ice the wound to decrease swelling.