I hv chronic dandruff wd itching & Hairfall. If I don't shampoo for 1 day my scalp starts stinking & itching bad. Seborrheic dermatitis suggestions plz?

What's been tried? There are lots of options. Sometimes scalp odor is due to your particular bacterial flora rather than a fungus. Have you tried a daily sulfur shampoo? This is likely to give you a good result.