Couple more things to think of. Mr Blasty is right, you may want to try benadryl or atarax if the itch is still bad. Just dont ride, you may be sleepy.
The number of stings you got may have sensitized your immune response. If you ever get stung again, your systemic response may be worse, ie, difficulty breathing. Someone else said this too, you may want to have an Epi pen with you.