Sure, I don't see a reason why you can't try just the Spilanthes Usnea as it has I believe four herbs in it. It seems to be the one that gives the most reaction in that it stings and itches but the others don't quite do that (probably means it is working better? lol). Apple cider vinegar is pretty cheap too and it works well on blackheads but I am not sure it can kill parasites deeper in the skin. I just got to thinking about that after I read the posts on ACV killing parasites in raw meats and on veggies but they are soaked in it and it wouldn't work to soak the face in vinegar for twenty minutes, that would not feel good..lol but you could wipe it on with a cotton ball. I think the tincture is strong enough to go deeper in the skin if the skin is first warmed up with a hot damp cloth and the pores opened then put the herb on it. I just read last night somewhere you can put the tincture on the skin full strength if it can handle it so you could potentially by pass putting it in warm water as I suggested in my earlier post and get a quicker effect (?) It takes a little longer to heal but I think the reason behind that is it is going after the root cause rather than topical.

Yes some of them had gunk come out of them and one of them that was huge you swear it was a boil but it never had puss come out, all that came out was this round pearl like egg, it was gross! That's when I got paranoid about what was under my skin and typically I would have thought it was a breakout of acne but truth to tell I think most people would consider it acne which makes me think a good percent of acne is probably parasite related.
It would be interesting if someone could do a study and have these things checked out. I know there is a mite that people are bothered by but personally I think the mite is just a small picture of the whole issue. My thinking is on the line of that there are always mites everywhere and normally the body can deal with them with a healthy mantle that covers the skin but when parasites are under the skin causing trouble the mites are given the opportunity to cause trouble so people are trying to deal with a mite when it is probably not the mite in itself if there wasn't a parasite below the skin undetected causing weakness on the mantle.
If that makes any sense..lol

Yes, just pouring it on but no don't rinse it off, just pat dry but first wash your face with a gentle cleanser (Nurtibiotic is what I use and it is a nice cleanser, not greasy, not creamy, nice and foamy but extremely gentle and leaves no film, I am sure you could find something just as good as this if you can't find this brand)from the organic store with no chemicals in it, so clean your skin with fairly warm water to get the pores open, rinse well, and then have your cup ready with the herbs in them and pour over your face but close your eyes! LOL then after about 30 seconds pat dry gently do not rub because that weakens the skin giving them more strength to invade and that is what probably causes inflammation which is typical of acne sufferers, wanting to scrub and almost always it gets worse. Then it probably gets angry from being disrupted from running it's cycle & burrows deeper. I am not certain on this all but it makes sense to me. And if you think about how acne is always described as "cyclic" up times and down times and it is probalby just the cycle of the invader (?).
I do think they are onto something on this forum that could actually eradicate a host of other issues people are suffering from...lol..seriously though if we look at some of the posts that are being shared about parasites causing sooo many things, this is probably just the tip of the iceberg we are all discussing and discovering. And yes, I believe clothing carries a whole lot of them..I recall one year I was really ill and everytime I would try something on at the store and pulled it over my head my face would turn bright red and get welts and bumps on my neck, chest and face...I had NO clue what it was other than I chalked it up as a chemical in the fabric so I quit trying on clothes and would wash them first before wearing them but now I have found that drying sweaters and jackets things like that and then putting essential oils on a cloth and running them all over the garment works and I never get that red inflammed bumps like I was getting bit all over!! what a world in which we live...lol.