Hidradenitis Suppurativa (HS) is not infectious1 and the disease is not linked to poor hygiene1. However, as symptoms occur on the surface of the skin, there are practical things that you can do to make you feel more comfortable.
Recommendation for local affiliate: Add a photo of someone dressing a symptom area
It probably feels frustrating to have to think about your skin every time you get dressed. Typically, cotton and loose-fitting clothes are preferable to synthetic, wool or tight-fitting garments. However, speak to your dermatologist about specific parts of the body and what might work.