It is generally safe and very appropriate to use Nasonex (mometasone) and Zyrtec (cetirizine) together. Since you have finished your course of Otrivin (xylometazoline), transitioning to Nasonex is a great step; Otrivin can cause rebound swelling if used for more than a few days, whereas Nasonex safely reduces long-term tissue inflammation. Zyrtec will further help if allergies are contributing to your blockage. Please spray Nasonex pointing slightly outward, away from the middle nasal wall. If your symptoms do not improve within two weeks, or if they worsen, please consult your doctor.

Using cetirizine (Zyrtec) and budesonide (Budenase) nasal spray for 14 years is generally very safe. Cetirizine has an excellent long-term safety profile. With long-term budesonide use, it is simply a good idea to have a doctor occasionally check your nasal passages for dryness or mild irritation. The itching you experience in your cheeks and throat when you miss a day is a very common 'rebound' effect; it is simply your original allergy symptoms returning as the medication wears off.

You gave him about 7 mg of cetirizine (Zyrtec), which is slightly higher than the typical dose for a one-year-old, but it is highly unlikely to cause any serious harm. The most common side effect is drowsiness, which explains why he is sleeping so peacefully right now. For now, let him rest, but check on him periodically to ensure he is breathing normally. Once he wakes up, offer him some water. For your peace of mind, you can call your pediatrician or Poison Control, but please rest assured he is safe.

A one-time accidental dose of 0.5 to 0.7 ml of Zyrtec (cetirizine) is very small and is highly unlikely to cause any serious or permanent harm to your 8-week-old baby. Extreme sleepiness is a known, temporary side effect of cetirizine and will wear off as the medication leaves his system. Mild gas and loose stools can also happen, often triggered by the sweetening agents in the syrup. Keep your baby comfortable and well-hydrated with breast milk or formula. To be completely safe and for your peace of mind, please contact your pediatrician or local poison control center.

You may take an over-the-counter antihistamine, such as cetirizine, once daily to help reduce itching. Applying calamine lotion or a gentle moisturiser to the affected areas can help soothe the skin and reduce irritation. If the itching is more severe at night and accompanied by small bumps, it may suggest scabies, in which case a doctor may advise applying permethrin cream from the neck to the toes, with a repeat after one week if needed. If symptoms persist or worsen, please consult a doctor for a proper diagnosis and treatment.

If you have had allergic rhinitis for a long time, it is common for symptoms like sneezing, a runny nose, and itching to come back when you stop medicines such as Cetirizine, because these medicines control the allergy but do not cure it permanently. For long-term control, doctors often recommend using a nasal spray (usually a mild steroid spray) regularly, as it works directly inside the nose and helps reduce inflammation over time. Saline (salt water) nasal rinses can also be very helpful in clearing allergens and soothing the nose. At home, try to reduce exposure to triggers like dust, smoke, strong perfumes, and pollen by keeping your living space clean, using dust-proof covers, and avoiding outdoor exposure during high pollen times. Washing your face and changing clothes after coming from outside can also help. Staying well-hydrated and using a humidifier in dry weather may give additional relief. If symptoms are severe or persistent, your doctor may suggest allergy testing or long-term options like immunotherapy (allergy shots or drops), which can reduce sensitivity over time. With the right combination of treatment and lifestyle changes, most people can keep their symptoms well under control.