Because you are vomiting, oral medications may be hard to keep down. For temporary relief, generic acetaminophen can help with the headache, and a gentle osmotic laxative like polyethylene glycol can ease constipation, provided you have no severe abdominal pain. However, experiencing headache, vomiting, and acute constipation together requires professional medical evaluation to rule out severe dehydration or a bowel issue. Please sip electrolyte fluids slowly and visit a clinic or doctor promptly. They can safely diagnose the cause and prescribe appropriate treatments, such as generic ondansetron for your nausea.

For temporary relief from constipation and gas, you can consider over-the-counter options. For constipation, osmotic laxatives like polyethylene glycol or fiber supplements like psyllium husk are gentle and effective. For gas, simethicone helps break down gas bubbles in your gut. Alongside medicine, try to increase your water intake, eat more fiber-rich foods, and engage in light walking. These symptoms are very common and usually resolve quickly. However, if your symptoms persist for more than a week, or if you experience severe pain, vomiting, or blood in your stool, please consult a healthcare professional for a personalized evaluation.

Since your symptoms have lasted a month, please consult a doctor to rule out underlying conditions. For constipation, you can take an osmotic laxative like Polyethylene Glycol or a fibre supplement (Psyllium husk), and drink 8-10 glasses of water. For gas and bloating, over-the-counter Simethicone can help relieve trapped. For acidity, an H2 blocker like Famotidine or a mild antacid will help reduce stomach acid. Avoid carbonated drinks, chewing gum, and greasy foods. If you experience warning signs like severe abdominal pain, blood in your stool, or unexplained weight loss, please seek immediate medical attention.

Laxopeg (polyethylene glycol) is safe for long-term pediatric use and does not cause physical dependency. It simply retains water in the stool. Persistent constipation despite high fiber is often due to behavioral withholding or inadequate water intake (fiber without water worsens constipation). Ensure she drinks plenty of fluids and establish a daily post-meal toilet routine. Please consult a pediatric gastroenterologist. They may suggest an abdominal X-ray to check for fecal impaction and safely adjust her Laxopeg dosage to fully clear the bowel.