Crying at bedtime

I don’t even know what to do anymore. My 5 month old cries so much At bedtime now. I used to lay her down and she would fall asleep without crying . She now just screams her head off for 45 min - 1 hr. I try to rock her and she screams. She is teething and I’ve given her tylonal but she still screams. I’m at a complete loss. I’m sitting outside now because I can’t stand the crying and my husband is helpless.