My feet are tingling after blood sugar over 600?

No, my young friend. One episode of higher than 'normal' blood sugar (glucose) will NOT cause the development of diabetic peripheral neuropathy. This would occur after literally years of having higher than 'normal' blood sugar levels.

Ignore the misinformation offered by bonnie. Compression stockings do NOT prevent the onset of diabetic peripheral neuropathy. They're for treating blood pressure problems, which is another complication that can develop due to higher than 'normal' blood sugar levels, though they MAY help to alleviate some of the symptoms once neuropathy has developed.

The information offered by bonnie about Lantus (insulin glargine) being a long-acting insulin is correct, but I've no idea what she's talking about with it having a "4 hour curve". Lantus takes about 1 to 2 hours before it starts to work, peaks after about 6 hours, ends being effective anywhere between 18 and 26 hours, and is MOST LIKELY to cause a 'low' between 5 and 10 hours after being injected.

You SHOULD use a fast-acting insulin to cover periods when your blood sugar (glucose) level is high.

Having said that, as you are a relatively newly diagnosed diabetic you SHOULD contact a member of your diabetes support team ... doctor/endocrinologist, diabetes specialist nurse, certified diabetes educator ... and ask for their advice. The difficulty here is that you PROBABLY still have some functioning beta cells (islets of Langerhans) in your pancreas ... these are the insulin-producing cells ... and your insulin requirements are VERY LIKELY to change as more of these beta cells are destroyed by your body's own immune system.

With a bit more experience you will find out things like your insulin sensitivity and what your insulin correction factor is. This will enable you to make more precise insulin adjustments, where you will know how much of a specific type of insulin you need to inject to 'cover' what you've eaten/drunk and how much of that insulin you need to take to lower your blood sugar level by a given amount.

Try, my young friend, to maintain blood sugar levels under 180 mg/dL ALL of the time as above this level can lead to the development of many different complications, some of which can be a real pain, literally; some of which can prove embarrassing; and some of which could prove fatal.

any reading over 200 is causing nerve and organ damage. diabetes is a slow disease and sneaky. don't underestimate it. compressions socks would help a little be sure your doctor knows about this. they may prescribe you a med that will slow up the neuropathy. next time your sugar gets that high drink lots of water while still using your insulin., lantus is a long acting insulin working in about a 4 hour curve. you may need some fast acting insulin, but to be fair to yourself please lay off the sweets so youll know your true need for insulin. fruits have a lot of sugar fructose treat yourself here and there but definitely keep it to a minimum. you are probably wanting to be like the crowd but you are not. you have a disease that can kill or maim. i have type 2 adult onset diabetes and i wish i'd taken it more seriously when i was first diagnosed. you have to make hard decisions not to eat sugary things so that you can live your life more healthy. i hope i've been a help.

"... as well as some sweet food too, sometimes."

THERE is your problems.

YOU HAVE TO STOP!!!!!!!

Blood suarg reasing ove 500 CAN cause you to go into a coma, then die.

I agree with micksmxx but the main answer is don't eat the smarties