Ralph Lauren sport checkered dress

Please take a look at the photos. I am unable to removed the yellowish stains in armpits , and I washed it twice, which may be from a specific cologne I used. If you know of a product that can instantly remove the stains, I’m open to suggestions. Should you want to make an offer and remove it yourself, please do so, I’m happy to sell ‘as is’. It’s a beautiful stylish dress for casual wear. Length 33”. Thanks.