How are the effects of Skin Botox for preventing makeup from smudging in the summer?

As the weather gets seriously hot, the makeup I carefully applied in the morning breaks down and clumps due to sweat and oil as soon as I get to work, making it look incredibly messy. Even touch-ups just get stuck in my pores and sit on the surface, so achieving a beautiful summer complexion is a huge stress. I saw reviews on online communities stating that getting Skin Botox (Dermotoxin) in the summer tightens pores and reduces sebum production, preventing makeup from smudging and reducing sweating. I am seriously considering getting Skin Botox at Maypure, but I am writing to inquire because I am curious if it is truly effective for controlling oiliness during the summer. I heard that the pain is quite severe since it involves shallow injections across the entire face; roughly how painful is it? Is it bearable if I apply numbing cream? Also, please provide a detailed explanation of how long the effects last after a single treatment.