Hairline took a hit after switching from Rogaine foam to liquid

[Frankhoffa]

So, nearly a month ago I had switched from foam to liquid. I had been on the foam for a few months since May. I had some pretty good hair thickening on the left front where I apply it. I did have the initial shed but recovered within a month and a half. I keep my hair short so it helped even out with the new hairs coming in after the initial shed. I then switched to the liquid about a month ago because the foam application is ridiculous and something in it was causing a skin allergy. The liquid doesn't hurt my skin like the foam but does cause dandruff but not the burn or intense itch. But within two weeks of the switch I started to shed. I'm hoping if I ride this out it will bounce back just as it did when I started the foam. I was wondering if anyone has had this experience and how long it took to bounce back to baseline and then to improved thickness or hair quality like I experienced after the first couple months of foam before I made the switch.