Accutane doesn't affect sweat glands, so if you're having this problem, which is called hyperhydrosis, it's not from the Accutane. It's mere coincidence it started after your course of Accutane, so no, another round of Accutane won't make you sweat more.
I would not expect your skin to flare when you start Retin-A after an Accutane (isotretinoin) regimen. Flares generally occur when first starting a course of acne treatment, and this is not your case. If you do notice new acne after your Accutane course, see your dermatologist sooner...
Accutane is a go-to medication for patients with recalcitrant cystic acne. It can reduce pore size and also reduce sebum production in your skin, making it less oily; and in turn, dryer. Accutane can be used to control acne, but patients receiving the medication should be carefully monitored. In...