Clean the bite gently with soap and water, apply an antiseptic, and keep it covered. Take a painkiller if needed and watch for redness, swelling, or pus. Inform a doctor if it worsens or if signs of infection appear.

Pityriasis rosea is a common skin condition that usually starts with one larger patch followed by smaller pink or reddish rashes on the body. It is not usually dangerous and often improves on its own within a few weeks to a couple of months. The exact cause is not always clear, but it may be linked to a mild viral reaction in some people. The rash can become more noticeable with sweating, hot showers, or tight clothing, and some people may also feel itching. Using mild soap, avoiding harsh skin products, and wearing loose cotton clothes may help reduce irritation. Try to keep the skin moisturised and avoid scratching, as this can worsen discomfort. If the itching is troubling, a doctor may suggest creams or medicines for relief. You should see a dermatologist if the rash spreads rapidly, becomes painful, affects the face or mouth, or does not improve after several weeks.

Chronic itching around the anus, especially when it persists for several months and begins affecting both sides, can be caused by various factors such as dermatologic conditions (e.g., eczema, psoriasis, or fungal infections), haemorrhoids, anal fissures, intestinal infections, poor hygiene, or allergic reactions to products. Given that your symptoms have lasted for 10 months and are spreading, it's important to consult a healthcare provider for a thorough evaluation. A physical examination and further tests are necessary to identify the underlying cause and determine the most appropriate treatment, as self-diagnosis and over-the-counter medications may not address the root cause and could worsen the condition.