How effective is long-term use of SMZ/TMP (sulfamethoxazole/trimethoprim) for treating hidradenitis suppurativa?
SMZ/TMP, also known as Bactrim, can be helpful for some people with HS, but it's not typically the first antibiotic prescribed. Research on its long-term effectiveness is limited.
When doctors prescribe SMZ/TMP Show Full Answer
How effective is long-term use of SMZ/TMP (sulfamethoxazole/trimethoprim) for treating hidradenitis suppurativa?
SMZ/TMP, also known as Bactrim, can be helpful for some people with HS, but it's not typically the first antibiotic prescribed. Research on its long-term effectiveness is limited.
When doctors prescribe SMZ/TMP for HS, it's usually when:
- Other antibiotics like clindamycin or doxycycline haven't worked
- You're allergic to more commonly used HS antibiotics
The available evidence comes mainly from smaller case reports and physician experience rather than large-scale studies. Some people with moderate to severe HS have seen improvement with SMZ/TMP after other treatments failed.
For long-term management, dermatologists typically prescribe oral antibiotics for a few months at a time. SMZ/TMP works by controlling inflammation and bacteria on the skin that may contribute to HS symptoms, even though HS itself isn't caused by a bacterial infection.
It's important to work closely with your dermatologist to monitor how well it's working for you. HS often requires a combination of treatments, and what works can vary from person to person.
January 14