In contrast to a straightforward viral cold, allergies, sinusitis, dust sensitivity, or nasal inflammation are more likely to be the cause of persistent cold symptoms for two months. L-Hist Mont can assist with allergies, but since steroids can have adverse effects like elevated blood sugar, weight gain, acidity, weakened immunity, and blood pressure issues, Betnesol should not be taken frequently for an extended period of time without a doctor's supervision. For a thorough assessment of an allergy or sinus condition, you should speak with an ENT professional. In the meantime, keep your room tidy, avoid dust, smoke, perfumes, and cold beverages, inhale steam two to three times a day, and drink lots of warm liquids. Seek medical attention right away if you also have thick mucus, wheezing, breathing difficulties, fever, or face pain.