I have a wound; is a wound dressing helpful?

I recently got a small cut on my arm, and I am writing to ask for advice on the best way to manage it. I thought about applying a wound dressing I had at home after cleaning the wound, but I wasn't sure exactly how it helps with healing.

I recall hearing in the past that drying out wounds helps them heal faster, but lately I've heard that maintaining a moist environment is actually better for recovery, so I'm confused about which method is correct. I'm wondering if simply applying a wound dressing I have at home speeds up healing, or if there are cases where it shouldn't be used depending on the type of wound.

I would also like to know when it is best to replace the wound dressing and whether it is correct to continue using it until the wound has healed to some extent. If there is anyone knowledgeable about wound care or who has actually used wound dressings frequently, it would be really helpful if you could share management methods or precautions. Thank you. 😊