Here is what helped me. I found that reducing refined sugar and lactose reduced my hair loss and putting peppermint oil and boiled cinnamon and italian herbs into my shampoo seems to be further stopping it, some studies show peppermint is more effective then minoxidil which is a hair loss treatment. After I took a round of antibiotics for bronchitis, amoxicillin-clavulanic acid, I started to lose my hair. Then I developed crohn's a year later, coincidentally antibiotics are linked to IBD now.
The same low sugar approach also helps my crohn's which is weird, it's similar to the specific carbohydrate diet in the book breaking the vicious cycle which is a treatment for IBD, in case you haven't heard of it yet, the diet has existing for decades yet finally been tested scientifically and proven to reduce symptoms.
Since I've seen a strong connection between me taking antibiotics and my health decline, I believe In fecal transplants as a treatment or possible cure to restore missing bacteria which regulate the inflammatory response in the G.I. tract. See the link below for more info!