Hi. I second the sacro Jane mentioned. It is, in my opinion, a clear cut case of fungal overgrowth in the gut. This will present all over the place and you have a cause in the abx. Here is my unfinished fungus page: Sagacious Mama
This is controversial in this forum but my treatment is threelac or nystatin (oral). I have tried with many people to do it without one of those things but in all honesty, it is just not effective. When you are dealing with a man made substance such as abx, then you need something just as strong to fix it. It isn't ideal, esp the nystatin as it wipes out all yeast, good or bad, but it isn't absorbed and is very safe. I use threelac now with myself and my family, but it is expensive, but in the States I think the price is similar to nystatin (nystatin is prescription here so therefore very cheap).
With the gut yeast treatment we also must kill the systemic yeast, and for that I just use black walnut hull tincture and wormwood tincture. There are others, but they are my choice. They seem to be pretty good. My son's yeast doesn't "flare" anymore, but just a few months ago he got a little spot of eczema or ringworm (all the same to me - fungus) and I treated him the same way and it faded and then left.
The probiotics I use are OMX
(random google page) as they are a naturally fermented product by a Japanese man who uses the same type of things as they use for fermenting japanese foods. There are many probiotics in it and I really can't find anything as good as it anywhere.
Topically, as bizarre as this sounds, anti dandruff shampoo can work because it has zinc pyrithione in it (anti fungal). Any cream with zinc in it, also good. Lavender oil diluted in coconut oil, can be good. Oregano oil diluted in oil, preferably coconut oil, also good. You can also eat that, I feed it to my son sometimes because he likes the taste of coconut oil so it helps me give him oils orally. Oregano oil is amazing! I don't know what I'd do without it. Also hydrogen peroxide. Ok externally, more effective internally. Dosage for my son is about 1%, externally 2%, nasal spray about 2% also (should it spread to the sinuses as fungus LOVES to live there and give us sneezy allergies).
Anyway, gotta run, sorry not full info. contact me if you like. Good luck. ABX SUCK. And other mature phraseology.