Sleep regression and teething! HELP!

Y’all talk to me about the 4 month sleep regression. My daughter will be 20 weeks tomorrow. And the past four days have been really bad with her not sleeping at night. She is also teething. Her gums are really irritating her, she’s crying a lot, being super fussy, not wanting the breast, lots of drool, and wanting to suck on my face a lot LOL I think the combination between the sleep regression and the teething have made it really really hard on both of us. I get little to no sleep and she only wants to be held 24/7!  what are some of your tricks for teething and sleeping? I will take all advice.