Can’t get wet

So when my boyfriend is teasing me and such. I can’t seem to get wet. This only happens sometimes too. I took birth control around January-July. It completely dried me out and sucked the life out of me. But ever since my body hasn’t been able to get back to how it used to be. I’m also 21 yrs old and before that I was able to do quickies and it wouldn’t take me 20 minutes to get turned on. We also have sex like 3-4 times a week (sometimes more or less) I also enjoy everything he does when he we have sex. He talks to me and he plays with my body. I don’t have any pain during sex either. We tried lube as well but any lube I’ve tried gives me rashes. I think its vaginal dryness but it comes and goes.