Perhaps you mean that it might dissolve the silicone? Polymers can dissolve, but silicone rubber won’t dissolve in alcohol. It can swell to some degree depending on the type of silicone and degree of cross-linking of the polymer. When this happens, the polymer is essentially trying to dissolve, and taking solvent into its structural lattice. It could swell to many times the original size. But when the alcohol is removed and allowed to evaporate, it will return to the original state, it had not dissolved, or melted.