Teething

Experienced moms help! My son has been showing signs of teething for weeks now but today has reached a new level. He’s drooled through three outfits (WITH BIBS ON) and won’t let me put him down or pass him off to my husband for a break and the last couple of hours he’s been SCREAMING. I finally got him to sleep but only if I hold him and he’s been whimpering the whole time. How soon after this stage did the tooth finally pop through? I feel desperate and want to know how far the light and the end of the tunnel is!!!