fuss with

fuss (around) with (something)

To continually fiddle with something, often nervously and unnecessarily. Stop fussing with your hair, honey—it looks great. After I'm done a painting, I don't like to fuss around with it.
See also: fuss
Farlex Dictionary of Idioms.

fuss (around) with someone or something

to keep bothering with someone or something; to fiddle with someone or something. Don't fuss around with it. We'll have to get a new one. Don't fuss with your children. They will get along just fine without all that attention.
See also: fuss
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.

fuss with

v.
To handle or manipulate something excessively and unnecessarily, especially when overly concerned or nervous: The contestants fussed with their outfits before the pageant began.
See also: fuss
The American Heritage® Dictionary of Phrasal Verbs.
See also:
  • fuss (around) with (something)
  • fuss at
  • fuss at (one)
  • hang up (one's) fiddle
  • hang up your fiddle
  • beat (oneself) up
  • fit as a fiddle
  • (as) fit as a fiddle
  • be as fit as a fiddle
  • twiddle with (someone)
References in classic literature
I looked upon him as the sort of person to be made a fuss with, and to make a fuss himself in any trifling disorder, and was chiefly concerned for those who had to nurse him; but now it is confidently asserted that he is really in a decline, that the symptoms are most alarming, and that part of the family, at least, are aware of it.
Mansfield Park
Want the benefits of LCD projectors and digital whiteboards without having to fuss with image size and focus, messy cables, and noisy fans?
Multiple needs/single solution. (What's new ... in presentation systems & products)
"Some people are afraid if they use the pendant that it will cause too much fuss with Gardai and fire engines calling."
Storm Couple's Sos Pager