Arkansas is great this time of year. I've spent a lot of time there.
I'd typically replace the bandaids w/ a 4x4 topper dressing pad and some tape. More flexible for different sized wounds, and around the same weight. It's less convenient, but cut to fit. That is, unless you are using band-aids for blister treatment (I don't, there are beter options). If they work for you, keep em.
I'd up the ibuprofen (if you need it on day 1, you'll likely need a dose per day).
Drop the following:
pack only 1-2 doses of antihistamines unless someone is allergic to something like bee stings.
Micro tweezers such as those out of a mini-swiss army knife are good, no need to pack larger.
Other areas to consider:
Why soap and alcohol gel?
What does the witch hazel do that you don't already have covered with other things?
Have you considered replacing the hand cream with something multipurpose such as sportsslick or bodyglide?
If you have a zip lock baggie, extra rubber glove or a hydration bladder you probably won't need an irrigation syringe.
You didn't list gloves, which I personally always pack due to the sheer number of times I've given first aid (or more) to strangers on the trail. It's just a rule I have.
If you pack sports slick, you may not need to pack antibiotic ointment. *Note, there are some debates on the practice of using antibiotic ointments in the field for more than a couple days. Best to reserch it and decide for yourself.
Unless someone has a history of eye severe infections, the eye antibiotic is probably overkill.
If you think you'll run across someone with a heart condition, aspirin takes up minimal room and could help, but otherwise probably unnecessary.
Extractors are rarely effective even if you need them and it really isn't the time of year. Those extractors really capitalize on the "fear of the unknown". You might see a copperhead warming on a rock but overall an encounter is so unlikely it's totally uncalled for in that area.
You're already packing oral antihistamines which work for most topical applications of hydrocortisone. So it's redundant.
Unless you actually have training on how to do stitches, rely instead on your butterfly closures. You'd be missing the silk anyway. I've done them in the field for my dog, but if you or your partner need them, best to just pack it out and ruin an extra layer of clothing to use to limit the bleeding and have a pro do it. Stitches without pain killers could ruin the relationship with most any hiking partner. Professional debriement is also very important when working with stitches and that'll definately hurt a friendship without pain killers. Besides, that's beyond firs-aid and more into actual medical care.
Expectorants - probably not needed.
Lozenges or candy - useful if a bug is going around, but overall not necessary.