If you have been experiencing red marks and intense itching on your body for 9 months, it is important to consult a dermatologist or healthcare professional for an accurate diagnosis and appropriate treatment. However, there are some general measures you can take to alleviate the symptoms in the meantime. First, avoid scratching as it can worsen the condition and lead to infections. Keep your skin moisturized with gentle, fragrance-free lotions or creams to help soothe the itchiness. Taking cool showers or baths with mild, non-irritating cleansers can also provide relief. Additionally, wearing loose-fitting clothing made from breathable fabrics like cotton can minimize irritation. Avoiding triggers such as harsh soaps, detergents, and allergens may also help reduce symptoms. Over-the-counter antihistamines or topical corticosteroids may temporarily relieve itching but should be used under medical guidance. Remember that these suggestions are not a substitute for professional advice, so it's crucial to seek proper medical attention to address the underlying cause of your symptoms.