La cagaste! Lava esa mierda lo antes posible!!! Nivea creme as well as other petroleum based creams/oils swell latex rubber.
Just fresh water all over the gun and let it dry in the shade in a well ventilated place. Forget about white color. Your rubber bands should last for at least 6 months (usually more). Then, you can replace them with any 16 mm bands you find in Italy.
Don't even toch the shaft. RA shafts tend to rust when the loose the surface treatment.
hahahahh...
what kind of rubbers here will be similar?