Teething

Wr

My daughter has been teething for over a month with no sign of any teeth being close to popping up. When I feel around in her mouth I do feel a few bumps in the front but they don't look/feel like they are close to coming in. She is sooo drooly, chewing on everything and at times fussy clearly because her gums are sore. How long does this usually go on for? FTM