i trid aver thing but the wont go awa

my building had bedbugs almost 3 years ago. my apartment was treated and i covered my mattress and box spring just recently my dog chewed on my mattress and ripped a hole in the covering. i sprayed with rest easy spray the hole and checked the exposed seems found no evidence and since no evidence was ever found that i had the bugs i didn't recover my bed. this morning i saw the red dot on the comforter it wasn't moving and was very hard. it didn't even look like anything i squeezed it and i

please help