on hair ties, I like the silicone kind (my hair is thick & breaks almost everything. There are even glow in the dark ones.) or the fabric kind (these wear out but are kind to hair). Also horn pins are great if you have enough length for a bun.
on hair product, I had a lot of trouble finding good stuff in America. Most of it is either too harsh, too expensive, or really drying.
Here, these were really good even on my mixed long bleached & short virgin hair, but for some reason they are 2-3x the price in USD:
https://www.amazon.com/Cosmeist-Inc-Smooth-Fruits-Treatment/dp/B07D5L1XY9
Your best bet would be:
- Figure out your hair type. I’m guessing you’re somewhere in the 1B-2B range. I am 1A-B. What is your porosity?
- Check reddit & other forums for recommendations in that type. Avoid recs that work for people with chemically treated hair as those have different requirements. Read this blog to understand your ingredient label & avoid marketing hype.
- My guess is go sulfate & silicone free (I found that silicone has really lovely results for a while, but becomes a devil’s bargain). For you in particular, avoid “volumizing” (usually drying) or “repairing” (lots of protein) lines, lean towards “smoothing” lines. You may want “moisturizing” depending.
- Drugstore brands can have a lot of promise and inconsistent follow through. Korean & Japanese brands are becoming more accessible. Amazon and (to some extent – there is a significant bias towards products that smell like dessert??) MakeupAlley are your friends. Also CosDNA to look up ingredients.
- Buy samples/travel size first. Swap with people on reddit. Don’t end up with a hair products graveyard. It’s often trial & error at first, sorry.
- Don’t just go for the cheapest or most expensive thing, but pay attention to ingredients. What kind of surfactant does it use & does your scalp get tight, dry, oily or flaky after? What kind of moisture or protein does it use & does your hair feel heavy/greasy later? Does your hair seem to fall out more or less after switching? Is your hair crunchy – use less film forming humectant (if it’s tangly, maybe need more). Do you need more or less protein? Do I need oil & how much / what kind?
- Brands:
7a.I’ve had good results with: Giovanni, Pureology, Matrix, Aussie, Loreal Ever*, Neutrogena, Nexxus
7b. I’ve had mixed results with: Garnier Fructis, OGX, Tresemme, Jason
7c. I’ve had terrible results with** : Pantene (how to go bald), Herbal Essences***, Vo5, Suave
** I haven’t tried these recently, they have definitely worked to improve some of their products.
*** Some of their newer products like this one actually look promising, albeit low on emollients and high on film-forming humectants – basically at risk of making hair crunchy depending on the hair.
Purito Defense Barrier 
.The Purito has a bit of a zingy, almost painful, but not irritating feel. It is excellent at letting me forget I have oily skin; when I don’t use it, I get some whiteheads, when I do use it, my skin looks and feels really good the next morning. It is also moisturizing enough I have not needed additional moisturizing or hydrating layers. I’ve experimented with switching back & just trying to avoid getting it on my hands. I also purchased a mini of the iUNIK Tea Tree Relief Serum, which I have not yet tried on my face, but it does not seem nearly as hydrating as the Purito, and it also relies on leaf water rather than extract.
UPDATE 
, regularly removing all dead skin flakes using AHA (seems to reduce the itching and recurrence), and switched to a shampoo with miconazole (also made by Rohto & from a refill pouch) which has absolutely helped with the SD but the smell 
. It appears to be healing and not returning to weeping stage, with significantly less itching, but dries out very easily and needs reapplication after any contact with water. I’ve had to use lidocaine to handle when I just can’t get it to stop itching and I need to sleep, since since my prescription fluocinonide ointment is fully occlusive and that just makes the itching worse.