If you feel like you are being over stretched I would speak up to the agency. They are supposed to help out with this kind of thing. Sure every bio-parent has the right to ask for hair cuts, pictures and all that good stuff, in our area at least you have the right to have some help with it. They could have a case aide/worker do part of a visit at the barber shop next time and let biomom/dad go to the hair cut. Maybe you could handle the pictures and the doctor or better yet see if they could take biomom/dad to the doctor so the doctor could better explain the bumps to her. If she is hearing it second hand she may continue to worry and not be secure in the answer the doctor says it's no big deal. (as a parent of kids with skin issues however sometimes the dr has to look at something six times before he realizes what it is
)
I do think it's our job as fp's to comply with most requests, but there are only so many hours in the day. I have biokids with allergies, asthma and basketball games. Foster kids with visits, health problems, therapy and basketball games too. I have to try to delegate when I can.
If your agency says there understaffed and can't help ask them if they can help you come up with some more solutions to make everyone happy.