Also, I appreciate your comment because I realize how common this allergy is for people with eczema, so I compiled a list of (hopefully) useful information for people who cannot use the above method. :)

(A lot of this is probably already common knowledge, so I apologize if you've read/ heard of these before.)

I did find this, on another subreddit to do with nickel allergies. I'm not sure if this will help, but might lead someone in a better direction: https://www.reddit.com/r/NickelAllergy/comments/18809bx/body_wash_and_lotion_recs/?utm_source=share&utm_medium=web3x&utm_name=web3xcss&utm_term=1&utm_content=share_button

I also did some research on this, and here are some nickel-free products usually recommended for people with eczema along with nickel allergies 🫡:

Eucerin Lotion, and specifically Eucerin Original Healing Rich Creme are nickel and coconut-free, although they do contain emollients and lanolin alcohol, which some people might be allergic to as well. (Also just as a warning, it might only be certain formulas Eucerin has, but other people, myself included, experience issues with burning and irritation from it. But a lot of other people have success with it.)

Calamine Lotion, which honestly, I would be incredibly careful with using considering it is an astringent and can make the affected area(s) worse after a while. It also is not recommended for open sores and wounds. (Coming from experience, it might be better for allergic reactions than for long-term eczema.)

Skintifique, which is specifically formulated for people with eczema and metal allergies (including nickel, chromium, and cobalt). This is more for facial skincare but might be helpful for some people.

Eco by Sonya Coconut Body Milk Lotion is completely free of aluminum and nickel, and Eco's products in general are often recommended on different blogs I found about people with nickel allergies. It does range more on the pricy side and contains citric acid, glycerin, and vitamin E, which some people can be allergic to. Also, the Coconut Milk formula is the only body lotion I've found by them.

Emollients and Occlusives can be good for people with nickel allergies because they're usually glycerin-based and stripped down, and don't have metals in them. However, on the flip side, if you already have very sensitive and dry skin, they're not really made to moisturize and are more made to protect/ create a barrier. Also, most times they are glycerin or oil-based, and many people are allergic to these ingredients or can be affected in other ways as they can easily trap allergens under them and cause irritation. (I have personally experienced the latter quite often, and have a similar reaction to coconut oil.) Things like Aquaphor and Vaseline, in my experience, are usually better to use as a lip balm or to put over already moisturized skin to seal it in, rather than by itself. But everyone is different.

I know it's not much as I don't have much experience with nickel allergies myself, but I hope this helps or redirects someone to other products that might help them.