welcome mom, there is a HUGE amount of info here on ALL the things you  have mentioned. You simply have to read, read, read, then,,,,,, read some more. Its All here. Personally, I dont think the O2 bar is  gonna do you any good at all,,, you just cant get enough flow there. you need at LEAST 15 LPM.   Rest assured, EVERYONE here understands!!!!!!!!!!! you are now among friends. welcome, and I hope you soon find a weapon that helps you fight the pain!!!!!  Good luck.    Tuck

Ice packs and 02 save me every time.  Unfortunately, the others here are right.  I'm not sure an 02 bar will really help you out.  We need such a high flow rate...  I tried 7LPM once, and it did absolutely nothing for me.  I know some doctors don't like to prescribe over 5LPM, so I'm sure that the 02 bar will be less than what we would want.

However, that doesn't mean you don't have weapons to fight with.  There's a ton of info around here, and everyone is more than willing to help out however they can.

Glad you're here, sorry you have to be.

Suggest you download and print the full article. It's a good introduction of CH.
-------------

 
Cluster headache.
From: Multimedia File Viewing and Clickable Links are available for Registered Members only!!  You need to or (Orphanet Journal of Rare Diseases)
[Easy to read; one of the best overview articles I've seen. Suggest printing the full length article if you are serious about keeping a
good medical library on the subject.]

Leroux E, Ducros A.

ABSTRACT: Cluster headache (CH) is a primary headache disease characterized by recurrent short-lasting attacks (15 to 180 minutes) of excruciating unilateral periorbital pain accompanied by ipsilateral autonomic signs (lacrimation, nasal congestion, ptosis, miosis, lid edema, redness of the eye). It affects young adults, predominantly males. Prevalence is estimated at 0.5-1.0/1,000. CH has a circannual and circadian periodicity, attacks being clustered (hence the name) in bouts that can occur during specific months of the year. ALCOHOL IS THE ONLY DIETARY TRIGGER OF CH, STRONG ODORS (MAINLY SOLVENTS AND CIGARETTE SMOKE) AND NAPPING MAY ALSO TRIGGER CH ATTACKS. During bouts, attacks may happen at precise hours, especially during the night. During the attacks, patients tend to be restless. CH may be episodic or chronic, depending on the presence of remission periods. CH IS ASSOCIATED WITH TRIGEMINOVASCULAR ACTIVATION AND NEUROENDOCRINE AND VEGETATIVE DISTURBANCES, HOWEVER, THE PRECISE CAUSATIVE MECHANISMS REMAIN UNKNOWN. Involvement of the hypothalamus (a structure regulating endocrine function and sleep-wake rhythms) has been confirmed, explaining, at least in part, the cyclic aspects of CH. The disease is familial in about 10% of cases. Genetic factors play a role in CH susceptibility, and a causative role has been suggested for the hypocretin receptor gene. Diagnosis is clinical. Differential diagnoses include other primary headache diseases such as migraine, paroxysmal hemicrania and SUNCT syndrome. At present, there is no curative treatment. There are efficient treatments to shorten the painful attacks (acute treatments) and to reduce the number of daily attacks (prophylactic treatments). Acute treatment is based on subcutaneous administration of sumatriptan and high-flow oxygen. Verapamil, lithium, methysergide, prednisone, greater occipital nerve blocks and topiramate may be used for prophylaxis. In refractory cases, deep-brain stimulation of the hypothalamus and greater occipital nerve stimulators have been tried in experimental settings.THE DISEASE COURSE OVER A LIFETIME IS UNPREDICTABLE. Some patients have only one period of attacks, while in others the disease evolves from episodic to chronic form.

PMID: 18651939 [PubMed]

no insurance=welders oxygen

Just don;t tell then what you are using it for.  Go to a welding supply company.  You won't be sorry.  Get the big ole green tank for about $150 filled.  Can refill it each time for about $30

Wish you luck.  Read learn and ask questions.