This should help https://www.hometalk.com/27842230/how-to-clean-a-showerhead
Hi Rita, here is a tutorial on home talk for you:
Rita, the easiest way to get a shower head to work better again is to put white vinegar into a little plastic baggie and rubber band it to your shower head so that it is submerged in the vinegar. Let it soak for awhile. You can leave for a few minutes to and hour. When you remove the vinegar, it should be like new!
Hi Rita, I clean my showrhead y using a large food storage baggie half-filled with vinegar. Just place it over the showerhead carefully and attach it to the showerhead with rubberbands. Let the showerhead soak in the solution for several hours, then remove and the holes in the showerhead should be clean. You can use the vinegar to clean your toilet or another area.
use a plastic bag and rubber band that around the end of the shower head - fill the bag with vinegar and let it sit. The acid in the vinegar will get rid of mineral deposits!
Fill a zip lock sandwich bag with white vinegar and attach it to the showerhead, submerging it totally. Leave on for 24 hours. Remove and run the shower to clean.
Yes, yes and yes to all the people saying to put white vinegar in a ziploc bag and rubber band around the shower head! Works like a charm!