Sorry to hear about you backpain SpikedJester, I know first-hand what a bitch it can be. I can't remember where I heard it, but I'd suggest mentioning one of my favorite quotes to your parents "Legality is the poorest indicator of morality". After all, slavery was legal once, inter-racial marrage was illegal, just being a homosexual was illegal, oral copulation was illegal, birth control was illegal, alcohol was illegal, and it was illegal for a farmer to refuse growing hemp during WW2 and I think the civil war.


Now as your for you back pain, advil is just LAAAAAAAAAME. You obviously have serious backpain and advil is just too weak, and besides I'd say as far as over-the-counter drugs go acetaminophen (tylenol) and ibeprophen (motrin for example) are better. You may want to get some Tylenol-3 with codein, or even better some Tramadol which is much stronger yet considerably less potential for addiction. Constipation is pretty common with opiod analgesics though, but that can be circumvented pretty well by eating dried apricots or prunes. I'd suggest the prunes, even though they taste like crap, 'cause apricots can make you gassy.

You'll also want to get an ice pack and ice the sore parts of you back 10-15 minutes (for the inflamation), then follow up with a hot bath (for the muscle tension). Make sure you do it in that order.
In the meantime take about 3,000mg Vitamin-C with 400IU Vitamin-E per day, this will help with the tissue repair. I know that's way more vitamin-c than normally recommended, but I've researched the issue and the recommended dose of VC is based merely on enough to avoid scurvey. You can consume massive amounts of it safely, it's almost as non-toxic as THC. Though exceeding 12 grams can lead to diarhea in some people.
Also, try to remember to keep your breathing slow and deep, that'll help with the muscle tension, pain, and emotional stability.

If you still want to make the case to your parents about weed, I'd challenge them to actually do some research from unbiased, scientific sources, and point out a few key facts including:

1. It's one of the least toxic substances known to man, and nobody has ever died of an overdose.

2. All the original reasons for which it was made illegal have been disproven. Henry Anslinger himself, the man who spearheaded prohibition, claimed it "made respectable white women have relations with colored men. It causes completely abd irreparable insanity, uncontrolable impulses to commit murder, and is why the mexicans are all crazy"

3. It has zero neurotoxicity. This means it will not kill brain cells. The reason for short-term memory impairment is because cannabinoids (primarily in low-tolerance users) clog up memory-receptors in the hypocampus and thus block the signals. After 30 days of abstinence, this normally clears out 100%.

4. THC has incredibly potent anti-cancer properties, possibly moreso than any substance known to man. There has yet to be a single reported case of lung-cancer arising from cannabis use alone. It also shrinks tumors, suppresses cancerous growth, and destroys cancerous glioma cells in the brain.


And to back it all up, along with a large quantity of other information, here's my collection of cannabis studies to use as you please.

MMJ Studies - Clinical Studies and Case Reports
Large Study Finds No Link between Marijuana and Lung Cancer: Scientific American

Marijuana May Fight Lung Tumors, Cannabis Compound Slows Cancer Spread In Mice, Researchers Say - CBS News

Carcinogen Content: Erowid Cannabis Vault : Info on Smoke composition

http://www.kansan.com/stories/2006/o...arijuana/?news


http://today.reuters.com/news/articl...5-healthNews-3


Cannabis and the Brain: A User's Guide by Paul Armentano


Journal - Issue 3-4 The Body's Own Cannabinoid System (general physiological information)


e.Peak (31/10/2005) news: science: Study shows marijuana increases brain cell growth


truth: the Anti-drugwar The "Dangers" of Marijuana


Marijuana Health Mythology


Current and former marijuana use: preliminary findings of a longitudinal study of effects on IQ in young adults -- Fried et al. 166 (7): 887 -- Canadian Medical Association Journal


Marijuana As Medicine?:


House of Lords - Science and Technology - Ninth Report


Cannabis Freedom Activist Network's Guide To Cannabis Research


Europe: Study: Marijuana Slows Alzheimer's Decline


MARIJUANA MYTHS


Jack Herer - Chapters


cannabisnews.com: Study: Pot Helps Hepatitis Treatment


Marijuana Myths/Marijuana Facts


Physiological Effects of Cannabis Consumption


Cannabis Facts for Canadians


The Sun Online - News: I'm 120 but my joints are OK


Effects of chronic marijuana use on testosterone, ...[Drug Alcohol Depend. 1991] - PubMed Result


Cannabinoids Research Articles and recent Cannabinoid Abstracts


Energy Citations Database (ECD) - - Document #5164483


Pot Smoking Not Linked to Lung Cancer


Marijuana Unlikely to Cause Cancer


ScienceDaily: University Of Toronto Study Shows Marijuana Not A Factor In Driving Accidents


ScienceDaily: No 'Smoking' Gun: Research Indicates Teen Marijuana Use Does Not Predict Drug, Alcohol Abuse


Marijuana Research Archives: April 2007.