Morpheus8 - Grid Marks and Bumps on Chest and Neck

I was really looking forward to getting the Morpheus8 laser done. Unfortunately I had a bad reaction that my provider is saying is an allergic reaction. I've been taking an antihistamine for about one week now. My chest is covered in grid marks and my necks has bumps covering most of it. It's been over two weeks and they are still there. My skin itches and feels uncomfortable on and off where the bumps are. I have now been prescribed an oral steroid as well as a topical one. I am hesitant to use the topical steroid as I've had an adverse reaction to it in the past (made the rash worse). I will start on the oral steroid tomorrow. I regret getting the Morpheus8 laser done. It's absolutely not worth it.