Since you have tried Betadine, Franch oil, Mederma, and Scarend, the best approach now is patience and gentle care. Keep the area well-moisturized and, most importantly, protect it daily with a broad-spectrum sunscreen, as sun exposure can darken the marks. Avoid harsh scrubs or peeling. These marks will naturally fade over several months. If they persist, a dermatologist can guide you on gentle options like topical vitamin C or retinoids to help restore your even skin tone.

Accidentally swallowing a small amount of diluted Betadine (povidone-iodine) gargle is generally safe and highly unlikely to cause any harm. The active ingredient is very dilute in gargle solutions. At most, you might experience a slight metallic taste or mild, temporary stomach upset. To help soothe your stomach and flush it out, simply drink a glass of water. If you experience persistent nausea, vomiting, or any unusual symptoms, please consult a healthcare professional.

Since those initial treatments haven't worked, please be reassured that we have other highly effective options. For severe burning and itching, a dermatologist may prescribe a topical corticosteroid, such as fluocinolone or clobetasol, to quickly calm inflammation. To target stubborn scaling, shampoos containing salicylic acid or coal tar can be very helpful. Additionally, alternative antifungals like ciclopirox olamine or selenium sulfide may succeed where ketoconazole did not. I highly recommend seeing a dermatologist to get a precise diagnosis, such as scalp psoriasis or seborrheic dermatitis, and secure the targeted relief you deserve.

While Betadine (povidone-iodine) has some antifungal and antiseptic properties, it is not the most effective first-line treatment for ringworm. Ringworm is a fungal infection typically treated with specific topical antifungal creams. Because you mentioned redness and pustules, there could be a secondary bacterial infection present, or it might be a different skin condition entirely. I gently recommend having a healthcare professional examine this to ensure you get the right treatment. In the meantime, keep the area clean and dry.

However, using these remedies every day for prevention is not recommended. Daily gargling with Betadine (povidone-iodine) can lead to excessive iodine absorption, which can affect thyroid function, especially in older adults. Similarly, daily steam inhalation with Easy Breath capsules (containing essential oils) can irritate the airways and nasal lining over time. These treatments are excellent for short-term relief during a cold, but for daily prevention, staying hydrated, eating well, and handwashing are much safer and highly effective.

For the first 3 to 5 days, stick to soft, cool foods like yogurt, smoothies (without a straw), applesauce, and lukewarm mashed potatoes. As you feel better, you can gradually reintroduce solid foods. For your prescribed Betadine (povidone-iodine) mouthwash, it is best to mix it with lukewarm water. Water that is too hot or too cold can irritate your sensitive gums, so a comfortable, room-temperature or slightly warm mix is ideal. Remember to rinse very gently without spitting forcefully to protect the healing areas.