Hello and Welcome to ‘Ask A Doctor’ service. I have reviewed your query and here is my advice. As per your case history of seborrheic dermatitis, my treatment advice is - 1. Don t scratch the lesion as it may worsen the condition. 2. Apply an antifungal cream like Clotrimazole cream on it. 3. Take an antihistamine medication like Levocetirizine. 4. Don t use the products mentioned by you. Hope I have answered your query. Let me know if I can assist you further.