Nico Rosberg has revealed the secret weapon which he hopes will fire him to victory at the Malaysian Grand Prix . This week 's race in Sepang is renowned as one of the most physically demanding on the Formula One calendar due to the extreme heat and humidity . And Rosberg , who finished behind Mercedes team-mate Lewis Hamilton at the season opener in Australia , has a rather unconventional way of dealing with the warm temperatures in Asia . Nico Rosberg revealed he will wear a sanitary towel on his forehead at this weekend 's race in Malaysia . Rosberg appeared in the FIA pre-race press conference ahead of the second round of the championship . ‘ I have an issue with my eye when I sweat a lot , ’ Rosberg began . ‘ I do have a sort of headband in my helmet , but it is my trick . ‘ I put a women ’ s… what do you call them ? The thing you put in your underwear. ’ When asked if he meant tights , Rosberg said : ‘ No , inside the underwear. ’ Sky Sports reporter Craig Slater then asked : ‘ A sanitary towel ? ’ The German replied : ‘ Sanitary towel . Is that what it is called ? Yes . I put that on my forehead in the helmet to soak up the sweat. ’ Rosberg has described the Malaysian Grand Prix as one of the trickiest of the Formula One season . The German 's revelation that he uses a sanitary towel provoked much hilarity in the media pen on Thursday . Since its inception on the F1 circus in 1999 , the Malaysian Grand Prix is widely renowned as one of the toughest on the calendar . It takes place at the Sepang International Circuit , just outside the Malaysian capital of Kuala Lumpur . With air temperatures in excess of 30 degrees Celsius and humidity levels over 70 per cent , the 90-minute race is a gruelling experience for the driver . They can lose up to four litres through sweat . Temperatures are forecast to be 36 degrees Celsius for Sunday ’ s race , the second of the championship . But that still falls short of the 42 degrees Celsius recorded at the 2005 Bahrain Grand Prix , regarded as the hottest in recent memory and won by Fernando Alonso ( pictured below ) . Temperatures are expected to nudge 36 degrees Celsius for Sunday ’ s race with a humidity of 75 per cent . Rosberg added : ‘ The race is one of the toughest on the calendar because of the intense heat and humidity , so you have to be very fit . 'It is vital to stay hydrated , too because during the race I can sweat up to four litres which is massive and probably double the amount of a regular race . ‘ It will be very demanding . By the end of the grand prix , your concentration levels will not be as high as they were at the beginning. ’ Rosberg appeared alongside Fernando Alonso in the drivers ' press conference on Thursday . The Spaniard returns to the McLaren cockpit after he was declared fit to race by FIA medics after missing the Australian Grand Prix . Valtteri Bottas , also absent from the curtain raiser with a back injury , has also been given the green light to race for Williams on Sunday . Rosberg , who finished behind race winner Lewis Hamilton , in Australia , shields his eyes from the sun . Fernando Alonso won the 2005 Bahrain Grand Prix for Renault after starting from pole position .
Malaysian Grand Prix is among toughest on calendar due to extreme heat . And Rosberg has revealed he 'll wear a sanitary towel to combat the sweat . He described his unconventional tactic for the Australia race as 'my trick ' Rosberg finished behind winner Lewis Hamilton last time out in Sepang .