Thousands will flood the venue at Balado this weekend

An NHS Tayside mobile clinic at the Kinross venue will also be distributing sunscreen to help festival-goers to protect themselves.

Meanwhile Tayside Police warned that it would be taking a zero-tolerance stance on people caught with illegal drugs.

The force will have more than 300 officers in and around the Balado site.

The NHS Tayside clinic will be manned by volunteer health workers who have been regulars at the festival for several years.

An NHS Tayside spokeswoman said: "The main message from the team to the revellers is to take care in the sun and remember the safer sex message.

'Harmful rays'

"Hot summer weather is forecast for the weekend and NHS Tayside is reminding music fans to stock up on sunscreen and not leave themselves exposed to the harmful rays of the sun."

The NHS Tayside mobile clinic will be located near the festival's information point, but the health authority has advised festival-goers to bring their own sunscreen of at least factor 15.

More than 70,000 people of all ages are expected to attend the festival, headlined this year by The Who and The Red Hot Chilli Peppers, with many camping at the event.

The weather is forecast to be hot and sunny this weekend

The police operation will be overseen by Ch Supt Matt Hamilton - who as a 15-year-old saw The Who perform in Auchinleck in East Ayrshire in 1969 - the same year the band released its rock opera album Tommy.

Ch Supt Hamilton urged festival-goers to have respect for local people.

He added: "If you are a criminal and come to T in the Park you will be arrested and almost certainly detained for court.

"Tayside Police will adopt a zero-tolerance policy to drugs. Anyone caught dealing or using will be arrested and reported to the procurator fiscal."