What is the recommended number of sessions for underarm laser hair removal?

With summer approaching and more occasions to wear short sleeves, I think I need to start taking care of my skin soon. I've been shaving with a razor at home every day, but it's leaving cuts on my skin and leaving dark stubble that looks like pencil lead, which is really unsightly. I decided I couldn't go on like this anymore, so I'm taking this opportunity to visit a dermatologist. Laser hair removal I'm thinking of getting a clean break with a package! My hair is on the thicker side, and to make it completely thin like downy fluff... Laser hair removal How many sessions do I actually need to get it to be sure it's effective? I'm a little nervous because I saw reviews saying it's really painful, but I'm going to grit my teeth and endure it. Laser hair removal I really want to make sure I get it done thoroughly ㅠㅠ If anyone who has received it knows any real, vivid reviews or great tips, please share them with me like crazy lol I want to go pay for it right now!