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As per the history provided, Tinea corporis or ringworm infection as you have mentioned appears due to fungal infection of any area in the body due to multiple factors including contact with an infected person, sharing belongings with an infected person, excess sweating, stagnation of moisture, sweating especially in private parts, lowered immunity, due to recurrences, climate factors, dietary factors, underlying medical history, and intake of medications lowering immunity. One of the main reasons for Tinea lesions to develop is the stagnation of moisture and sweat in the affected area. I suggest you provide an image of the affected lesion. In the absence of an image, it is difficult to provide a confirmatory diagnosis, an assessment of the severity of the lesion, and its treatment. I would suggest you the following-
1. Ketoconazole soap is to be used for bathing and cleaning the affected area twice daily. Apply the soap after lathering it with water on the affected area only, keep it for three minutes and wash it off. Make sure to avoid using soap in unaffected skin areas. Apply regular soap on normal skin while bathing.
2. Ketoconazole 2 % cream is to be applied on the affected lesions only. May be used on the skin (thigh) and in case the lesion is on the lips and near the lip area, this medication may be used. Apply twice daily (morning and night) after bathing with Ketoconazole soap on the affected area. Massage gently till the cream absorbs and make sure to wash your hands well with hand soap to avoid spreading the lesion.
3. Candid mouth paint (Clotrimazole), in case there are lesions inside your mouth area. Paint the medication lightly on the affected area inside the mouth every three hours.
4. Tablet Fluconazole 150 mg once a week for four weeks. Consume one tablet with water after dinner once per week. For example, every Sunday for a total of four weeks making it a total of four tablet consumption.
5. Capsule Becosule Z once daily after dinner for two months. They help with the maintenance of immunity and help prevent and fight new infections and recurrences. Consult your specialist doctor, discuss with them and take medications with their consent.
6. Avoid stagnation of moisture and sweat especially after bathing. Make sure to wipe your skin clean and dry. Make sure to wipe off any sweat which forms throughout the day and avoid stagnation.
7. Terbinafine dusting powder. Make sure to use this powder on the affected area on the thigh twice daily, in the afternoon and evenings (between cream applications) for absorption of excess moisture and to reduce the intensity of ringworm lesions.
8. Avoid sharing belongings, and avoid contact with infected individuals. Make sure to treat any family members or friends of close contact as if they are left untreated, recurrence of infections may be common.
9. Avoid oily, fried food, milk, dairy products, sweets, and red meat. Ensure intake of more fruits, vegetables, and water of at least 13 glasses per day (250ml standard glass size).
Kindly provide an image, if possible, for further assessment and management as the image is required for inspection of the lesion and to assess the severity of the lesion for providing appropriate treatment and confirmatory diagnosis. Tinea lesions usually take a few weeks to months to reduce therefore consistency and patience while using the medication are advised. Continue the creams and soap for eight weeks or more till the rashes fade off for the desired result.