How to hide a portion of a URL

Site URL: https://www.thedrop.ca/product-catalogue/natural-deodorant-citrus-bloom

Does anyone know how to hide a portion of a URL? I'm selling affiliate products on my site, and when I link each product from my site (thedrop.ca) to what is essentially my affiliate link (from doTERRA.com) it shows my affiliate ID # in the URL and I don't want people to be able to see that. I know it's possible to hide it because it's hidden when I go directly into the doTERRA affiliate site associated with my business. So doTERRA is able to hide my affiliate ID on their site, but when put the link on my own website it shows my ID #. Photos attached to show what I mean. 

There are many pages this needs to get sorted out on, but I've given the link to just one page as an example. They are blog pages, if that makes a difference. 

Any help is SO much appreciated! 

It looks like you can edit Button Block > Change url?

@tuanphan The URL has to stay the same. I'm wondering if there's a code to collapse part of the URL once it opens to hide the "?OwnerID=9190909" portion of the URL. Is that possible?

It is not possible to hide the id from the links in your site. Your ID is critical to giving you credit. If it was removed then you wouldn't get credit.

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I know it's possible to hide it because it's hidden when I go directly into the doTERRA affiliate site associated with my business.

When you do this you are logged in to the site. The act of logging in is giving the site context as to who you are and there is no need to use the affiliate ID in the URL.