A severe headache for one week should not be ignored. Since your BP is normal, possible causes include Migraine, Tension headache, sinus issues, eye strain, sleep problems or any underlying medical condition. As the medicines you tried did not help, avoid further self-medication. Maintain proper hydration, regular sleep, and limit screen time. You should consult a doctor or neurologist for proper evaluation and appropriate treatment.

I would advise against combining cetirizine with the paracetamol, phenylephrine, and chlorpheniramine mixture. Both cetirizine and chlorpheniramine are antihistamines, and taking them together can cause excessive drowsiness, dry mouth, and dizziness. Additionally, since your cough has lasted nearly three weeks, these over-the-counter remedies may not address the underlying cause. A persistent cough of this duration warrants a proper evaluation by a doctor to find the exact cause and get you the right treatment.

You may take paracetamol to reduce fever and relieve headache and body aches, or use a saline nasal spray, steam inhalation, or a decongestant like phenylephrine to help clear a blocked nose. An antihistamine such as cetirizine can help with sneezing and a runny nose. Make sure to rest and drink plenty of warm fluids to support faster recovery. If your symptoms persist beyond 3-5 days, become severe, or if you develop a high fever or trouble breathing, please consult a doctor for proper assessment and treatment.

There isn’t a single tablet that permanently cures sinus problems. Medicines can help relieve symptoms or treat infections, such as decongestants, antihistamines, or antibiotics, if prescribed by a doctor. For long-term relief, it’s essential to identify and manage underlying causes, such as allergies or nasal congestion. In some cases, lifestyle changes or procedures may be needed for lasting improvement.

Headaches after bathing or being in the cold are usually caused by sinus sensitivity or migraine triggers, not eye problems. Cold water or air can irritate the sinuses or set off migraines, leading to headaches. Since Sinarest helps her feel better, congestion or sensitivity to cold might be involved, but this does not confirm the exact cause. It is not always easy to say if it is only sinus or only migraine without a proper checkup. Pain around the forehead, cheeks, or nose with a heavy feeling may point to sinus issues. If the pain is on one side, throbbing, or comes with light sensitivity or nausea, it could be a migraine. A doctor can examine her and suggest treatment if needed. She can try to avoid cold triggers, use lukewarm water for bathing, and keep her head covered after a bath. Steam inhalation may help if her sinuses are involved. Keeping a regular sleep schedule, staying hydrated, and managing stress can also help prevent migraines. If her headaches happen often, are severe, or are getting worse, consulting a doctor can help find the cause and plan long-term care.

If you suspect you might be pregnant, it is safest to avoid Sinarest New for now. This medication contains a decongestant (phenylephrine) which is generally not recommended during early pregnancy. For mild pain or fever, plain paracetamol is typically a safer option, but please consult your doctor before taking any medication. I highly recommend taking a home pregnancy test to get a clear answer.