Off balance ph..

So I went to the doctor today and found out that my ph is off balance, apparently its a 6, and thats high. So the recommendation of my Dr is that I do vinegar douches 2 times a day for the next 2 weeks. Then I go back to see him after the 2 weeks. Also said no sex for 2 weeks. Ive just always heard that douching is bad. Ik this is dr ordered just thought I'd get some insight from others.