Volunteers at St John Ambulance gave first aid to 657 people at the V Festival in Chelmsford this weekend.
The number treated was down from 752 people last year. 28 people were taken to hospital.
Darren Bartholomew, from St John Ambulance, said: "As expected, with up to 85,000 festival goers at this event each day, we were called upon to deal with many different types of first aid incident, but after months of preparation we were ready to tackle everything which came our way.
"I'd personally like to thank all our volunteers who gave up their time to provide first class care and were on hand to make sure that everyone who came to us for treatment was able to receive it."
More top news
The very mild weather will continue during the rest of today before it turns wet overnight. Tomorrow will be sunnier but also colder.
Police forces across the Anglia region are facing cuts of £47 million in funding from central government.
There's major disruption on trains between Ipswich and Norwich because a signalling fault near Stowmarket.