Pack Only/All The Essentials

I like to pack as light as possible but I have to be practical. Practical for me is not bragging about being able to pack everything I need for a week in a backpack.
​A major consideration when packing as a chronically ill/ disabled person is what does is a necessity to ensure the same wellbeing I have at home. This question drives me as I consider everything I pack. What some people may consider a luxury is a necessity to me. I have a bridge (dental work) so I need 2 types of dental floss. I have severe dermatitis so I have several different types of moisturizer. There is some flexibility; if the trip is only a couple days I can do without certain products or I may be able to use travel sizes. If the trip is five days or more and especially if it’s out of the country, I have to make sure I have a sufficient amount of precisely what I need because I may not be able to obtain it. On the other hand,  I have ethnic hair; I must have a sufficient amount of specific hair products. Even facilities that supply hair products do not have products that will work for my hair. If they have soaps and lotions, will they affect my chemical sensitivity?
I do try to decide if the products need to be in full sized containers or whether I can move them to smaller containers. I also spend time thinking about creative uses for containers. For instance; I use an old container that had gummy vitamins as a smaller bottle for mouth wash when I travel for more 5 days because we’d go through several travel bottles but out bottles for home are huge. I like to use plastic, travel soap containers for my jewelry, cotton balls, and other small items. I keep empty pill bottles and u put qtips, hair products, and many other items in those depending on the size.
I use several clear cosmetics bags for accessories, sunglasses, any medium sized items that I want to keep together.
It’s more important that I have what I need than it is to have less. Because of this, I try to be conscious of packing as compact as possible than it is to pack less. I hope I gave you some tips that you can use or that spark a creative packing idea of your own.