Vaginal Pain During/After Period

For the past 6 months or so I have had pain/itching/general discomfort during/few days after my period. Is it possible to be allergic to the tampons? I've considered looking into a natural brand but my flow is super heavy and I usually need to use an Ultra tampon for most of my cycle. I'm iffy on a diva cup and pads just aren't that convient. Any thoughts? Thanks!