The main reasons for headaches are diverse, including tension, dehydration, eye strain, sinus issues, migraines, and cluster headaches. Treatments vary depending on the type and cause of the headache:

1. Tension Headaches: Relaxation techniques, over-the-counter pain relievers, stress management, and improving posture can help alleviate tension headaches.

2. Dehydration: Drinking plenty of water throughout the day can prevent dehydration headaches. Rehydration solutions or electrolyte drinks may also help.

3. Eye Strain: Taking regular breaks from screens, adjusting lighting, and using proper ergonomics can reduce eye strain headaches. Corrective lenses or glasses may be necessary if you have underlying vision issues.

4. Sinus Headaches: Nasal decongestants, saline nasal sprays, steam inhalation, and over-the-counter pain relievers can provide relief for sinus headaches. Treating the underlying sinus problem, such as allergies or infections, may also be necessary.


5. Migraines: Migraine-specific medications, such as triptans or preventive medications, along with lifestyle changes like stress management, regular sleep, and dietary adjustments (identifying and avoiding trigger foods) can help manage migraines. 

6. Cluster Headaches: Oxygen therapy, triptans, calcium channel blockers, and preventive medications may be prescribed by a healthcare professional to manage cluster headaches.

In addition to these treatments, practicing relaxation techniques, maintaining a healthy lifestyle with regular exercise and balanced nutrition, managing stress, and getting adequate sleep can help prevent and alleviate headaches. It's important to consult a healthcare professional for proper diagnosis and personalized treatment recommendations, especially if headaches are severe, frequent, or interfering with daily life.