So my man and i are spending the weekend together and all we’ve been doing is the nasty , I think we had sex like 5 times already. Now its the morning. We just had sex again but my vagina has been burning ever since. It was burning last night after the second round but it continued on and this morning its been unbearable.

Its only on the outside that i feel it

Could it be from all the penetration and the friction ?

Would lube help?

What do you guys recommend as a good and safe lube brand?