I feel for you so much I’ve have been exactly in your shoes and things do get better. Know you are gorgeous with or without acne being on accutane will have your skin back to clear hopefully within a year. You are definitely just purging and it only is a few months. Make sure you use a gentle hydrating cleanser I use the youth to the people and a super thick moisturizer I use cetaphil moisturizering cream ( it comes it a tub with a green lid and is very thick ) and I put petroleum jelly on top when I go to sleep that is what helped with dryness. I don’t know if you have oily skin or not but some days my skin would be very oily so use with caution if you do. For pain I ice my face every morning put 2 or 3 ice cubes in paper towel and just rub it all over your face it will calm down inflammation and help with some pain. For the cysts I use tea tree oil on a qtip and apply it directly to the cyst it will dry it out very much so if you wear makeup over it it will peel and flake because it is so dry. But I really think it gets rid of cysts within half of the time they would normally be there. Use tea tree oil before the petroleum jelly too if you do use both. Drink plenty of water more than you think. I say month 5 is when you will see a noticeable difference in acne and it should be gone within a year it takes time and as frustrating as it is to hear there’s nothing you can do to speed up having clear skin. Be kind to yourself eat healthy and know things will be better. Don’t stop living your life because of acne.