Cold, cough, and fever are most often due to a viral infection like the common cold or mild Influenza, and usually improve within a few days with simple care such as adequate rest, drinking plenty of warm fluids, and eating light, nutritious food. You can take paracetamol for fever and body pain, use steam inhalation for congestion, and saline nasal drops for a blocked nose; a suitable cough syrup may help depending on whether the cough is dry or with phlegm, but antibiotics are generally not needed unless a doctor confirms a bacterial infection. Avoid cold drinks, dust, and smoke, and maintain good hygiene to prevent the spread. If symptoms persist beyond 4-5 days, become severe, or you develop breathlessness, chest pain, or high fever, it is important to seek medical advice for proper evaluation.

Having a skin allergy along with cough and cold symptoms can often be due to an overall allergic reaction (such as Allergic Rhinitis with Urticaria) triggered by dust, weather changes, or certain foods, but it can also occur during viral infections where the immune system is active. Treatment mainly involves avoiding triggers like dust, smoke, and strong fragrances, staying well hydrated, and taking antihistamine medicines (as advised by a doctor) to reduce itching and allergy symptoms; soothing lotions like calamine can help the skin, while steam inhalation and simple cold remedies can ease cough and nasal symptoms. Most cases improve with these measures, but if the rash is severe, persistent, or associated with swelling of the face, breathing difficulty, or high fever, you should seek medical care promptly for proper evaluation and treatment.