Ingrown hairs on top lip 😩

I bought one of these and I’ve been using it regularly... but lately I’ve been finding I’m getting spots on my top lip. It’s almost like in grown hairs, or something going a bit weird as the hairs growing back.

I’ve tried exfoliating to stop it happening. But I might just have to stop using this altogether, and find another way.

I’ve always had quite dark hair so the hair on my top lips been noticeable- to me anyway!

I’ve tried bleaching it, but my skins too sensitive, I’ve tried plucking... I don’t know what else I can try?