Hi girls, hi! Need advice, maybe someone dealt with this in a previous…

Hi girls, hi! Need advice, maybe someone dealt with this in a previous pregnancy or is in the same situation now. Can you use vaginal suppositories after the mucus plug has come away (it doesn’t seem to have come out completely, only a little came out) — still. There’s a small itch, it doesn’t really bother me, but it does cause discomfort when there’s discharge. The doctor prescribed Pimafucin for 6 days; I used it for only three days because the pack has 3 suppositories ??‍♀️ I thought it was gone and why continue. I should have finished it (( And now the plug seems to have come away and I’m afraid to insert suppositories, but if it’s not 100% clean in there then that’s bad too ?