Psoriasis vs acne -minocycline HCL.

I developed acne when I was 14-15 years old. I consulted a skin specialist and he gave me some tablets and a gel. Within a month I got psoriasis and it was very rapid. Then I took Ayurvedic medication and everything was under control . From the past 5-6 years I have bend/acne type in my arm-pits. Consulted numerous physicians but it dint go 100%. Then I consulted the same skin specialist which I had consulted 10 yrs ago which resulted in a blunder (triggering psoriasis). He gave minocycline hydrochloride n said it is a type of acne which I have in my arm pits. But when I read about this medicine, it seems this also triggers psoriasis.... Please help me understand about this and suggest me accordingly. Surgery will be my last option to remove that bend(acne) in my arm pits as it is from years and has not cleared 100%.