Is folliculitis contagious?
Mostly not — but the bacterial form can be passed on through shared razors, towels or close skin contact. Do not share those, and it is not something you need to isolate for.
Why does it keep coming back after antibiotics?
Usually because it was never bacterial. Mechanical folliculitis from shaving or friction, and fungal folliculitis on the chest and back, both look similar and neither responds to an antibiotic — the fungal type actually gets worse on one.
The other reason is that the cause is still there. Antibiotics clear an episode; they do not stop a razor causing the next one.
How long does it take to clear?
Most mild cases settle within seven to ten days once the cause is removed. Deeper lesions and boils take two to three weeks.
What is hot tub folliculitis?
A Pseudomonas rash appearing 12 to 48 hours after a hot tub, typically where swimwear held water against the skin. It is itchy, sometimes comes with a mild fever, and it almost always clears by itself — antibiotics are rarely needed.
Can I still shave?
Better not to during a flare. Once it has settled, change the technique rather than the frequency: with the grain, a fresh single blade, and never dry.
Will it scar?
Superficial folliculitis usually does not. Deeper lesions and anything squeezed can leave marks, and in deeper skin tones post-inflammatory darkening is common and takes months to fade — that is pigment, not scarring, and it does resolve.