Breast reduction surgery. Have to take Ibuprofen, but for how long?

I had what looked like an allergic reaction to Tylenol 2 days post op. My surgeon said to switch to Ibuprofen. I know that's not usually ok because of the blood thinning effects. But, I had no other choice. I'm 4 days out. I stay at 400 mg, 3X a day. This is the max recommended on the bottle. I haven't been in very bad pain, but I don't want to be (obviously). Should I push through when I start to get sore and try to lessen how much I take or is it ok to keep taking that amount? Thanks.