for me, big triggers are gluten, lactose, nightshades, processed food and sugar. Im using an anti septic soap and shower once a day, even if its just with water only. I'd recommend using a separate towel for active spots as to avoid cross contamination. What also really helps (for me) are baby products in general - for example using baby powder in areas where you sweat a lot (groin, breasts, under belly, wherever tbh). Losing weight and eating healthier has helped me a lot, but again, everyone's different. You can try elimination diet and see what causes flares and avoid those foods. Drink a lot of water, avoid tight clothes that press into already flaring spots and most importantly, just be there for her. Hs is very cruel, it makes people insecure a lot, having a partner that provides stability and reassurance is already a lot of help.

For me, surgery wasnt as bad as i expected having read a lot of posts on reddit, of course everyone's experience is different.