Exactly, that’s the dilemma most people run into.
The goal isn’t to choose between harsh or gentle shampoos, but to be gentle on the scalp while still being aggressive on the fungus and excess oil.
Using a therapeutic anti-dandruff shampoo is key. You want something that actively targets buildup and yeast, while still respecting the scalp so it doesn’t rebound with more oil.
At the same time, your routine shouldn’t stop at washing. Supporting the scalp between washes is just as important. A lightweight, non-oily leave-in like a serum or elixir can help keep the environment balanced without feeding the problem.
It’s really about balance—control the oil and fungus, but keep the scalp calm so it can actually recover.

But how? By using harsh sulfatr shampoo every 3 days? By trying natural shampoo or non sulfat shampoo so the oil production doesn't backfire? It's definitely a delima

Most people with seborrheic dermatitis tend to have an oilier scalp, which makes regular washing helpful.
The goal is to prevent the buildup of oils that feed Malassezia, since excess oil can quickly trigger flakes, itching, and irritation.
However, washing too often with harsh shampoos can strip the scalp and damage the skin barrier, making symptoms worse.
It comes down to balance: keep oil levels under control with regular, gentle cleansing while supporting and protecting the skin barrier.
Control the oil, protect the skin—that’s what keeps seb derm in check.