It is important to clarify if this is an allergic reaction or a true skin infection, as they require completely different treatments. Applying steroid creams (common for allergies) can actually worsen a bacterial or fungal infection. For temporary relief from itching, you may take an over-the-counter oral antihistamine like Cetirizine or Loratadine. Wash the area gently with a mild cleanser and avoid picking at the bumps. I strongly recommend consulting a doctor or dermatologist for an accurate diagnosis so they can prescribe the correct medication, such as a topical antibiotic cream for an infection or a specific steroid cream for an allergy.

Spreading itchiness can be caused by a mild allergic reaction, contact dermatitis, or dry skin. To find relief, you can take an over-the-counter oral antihistamine like cetirizine or loratadine. For the body, applying a soothing calamine lotion or a mild generic 1% hydrocortisone cream can help. Be very cautious with your face; apply only a thin layer of mild hydrocortisone for a couple of days, or use a gentle, fragrance-free moisturizer. Please avoid scratching to prevent irritation. If you notice any pain, blisters, or if the itching persists, it is best to see a doctor for a personalized evaluation.

For your symptoms, you can take paracetamol to help relieve body tiredness and aches. For the cold and runny nose, an over-the-counter antihistamine like cetirizine or loratadine can provide relief. If you have a dry cough, a cough suppressant containing dextromethorphan may help. Most importantly, get plenty of rest and stay well-hydrated with warm fluids. These symptoms are very common and usually resolve with rest. However, please consult a doctor or pharmacist to ensure these generic medicines are safe for you, and seek medical attention if your symptoms worsen or you develop difficulty breathing.