Cluster Headaches - these are the worst type of headache and can last for a few minutes or hours, recurring regularly for some time - weeks or months (cluster).  The main syptom of cluster headaches is the excrutiating pain which affects only one side of the head but can be accompanied by other features - the headaches tend to occur at the same time and up to 4 times per day
.........more from Clusterheadache.org

Tension Headaches - a mild or moderate pain 'squeezing' pain around the 'hat-band' area.  This type of headache can spread down the neck and last from 30 minutes to 7 days
.......more from Patient.co.uk

Migraine Headaches - a throbbing moderate or severe headache, sometimes accompanied by flashing/zigzag lights, nausea, vomiting and a feeling of weakness and extreme tiredness.  These headaches can last up to 3 days and the sufferer can be very sensitive to light or noise.
...... more from Migraine Action

Chronic Daily Headaches - a headache that affects both sides of the head and is mostly always constant.  This type of headache is typically associated with overuse of painkillers
...... more from Headache-help.org

Not tonight, Darling, Headaches - needs no explanation!!

Alternative therapies can be very helpful when treating headaches. As stress has been identified as a significant migraine trigger, any therapy that encourages relaxation can help. Also manipulation therapies can encourage the blood flow to the brain and relieve any postural or skeletal problems. The following natural therapies can be particularly helpful for the relief of headaches, these are cranial osteopathy, chiropractic, homeopathy,acupressure, reflexology and rolfing.

Aromatherapy massages using the essential oils peppermint or lavender, are good for releasing muscle tension. When mixed with the relavant carrier oil they can be massaged into the temples to bring quick relief.