There are many red pimples on my head as shown in the picture below, accompanied by itching and pus after scratching. It's been two years. It's better to be cooler in winter or in summer. Yes, please.

Seborrheic dermatitis, also known as seborrheic eczema, is a chronic inflammatory skin disease with sebum secretion on the head, face, chest and back. Its occurrence is related to the colonization and infection of Malassezia. The treatment lies in reducing irritation and limiting high-sugar and high-fat diet. Topical antifungal therapy can use selenium disulfide lotion or ketoconazole lotion or compound triamcinolone acetonide econazole cream for external use.