Frequent cold and cough symptoms can sometimes be due to repeated viral infections, but they are also commonly related to Allergic Rhinitis or allergies to dust, pollen, smoke, pets, or weather changes. If symptoms occur repeatedly without high fever and are associated with sneezing, itching, watery eyes, or seasonal triggers, allergy may be a likely cause. Avoid dust and smoke exposure, keep rooms clean, drink enough fluids, and consider steam inhalation or saline gargles for relief. Medicines such as antihistamines may help, but it is best to consult a physician or ENT specialist for proper evaluation and to decide whether allergy treatment or further tests are needed.

Okacet (cetirizine) is generally safe for long-term use, but taking it every three days only provides temporary relief without controlling the underlying inflammation. Your symptoms, which worsen with summer heat and scratching, could indicate cholinergic urticaria or a heat-related allergy. To treat this effectively, taking a daily non-drowsy antihistamine (like Cetirizine, Fexofenadine, or Bilastine) is usually recommended for continuous control rather than sporadic dosing. Please consult a dermatologist for an accurate diagnosis and a personalized treatment plan. Meanwhile, keep your skin cool, wear loose cotton clothes, avoid scratching, and apply calamine lotion for soothing relief.