More than 700 people were given first aid during the two day V Festival in Chelmsford.
Essex St John Ambulance volunteers treated 752 casualties and took 10 people to hospital during the festivities. More than 120 members of the first aid charity worked during the weekend event.
More than 50 people have now been arrested on suspicion of drug offences at the V Festival in Chelmsford.
Revellers have basked in the sunshine at the V Festival in Chelmsford while listening to acts such as Ed Sheeran and The Stone Roses.
Essex Police said the arrests sent a "strong message" to anyone thinking about using or supplying drugs at the V Festival in Hylands Park.