Recurrent pimples and dandruff are common and often need ongoing maintenance rather than a one-time cure. Dandruff (scalp fungal overgrowth) can trigger acne on the forehead and face, so it is important to keep using an anti-dandruff shampoo (like ketoconazole or zinc-based) regularly, even after improvement. For pimples, follow a gentle routine with a salicylic acid or benzoyl peroxide face wash, a light moisturiser, and daily sunscreen. Avoid oily hair products and keep your scalp clean to prevent flare-ups. Since your symptoms keep returning, it is best to follow up with a dermatologist for a long-term maintenance plan or adjusted treatment to help keep your skin clear and smooth.