I have the same numbness in my left ring and small finger isolated to the left side of the ring finger and the right side of the small finger. The site also has dead skin resembling eczema. I was previously diagnosed with ulnar nerve compression@ the elbow and I have a 'bible bump' small cyst like bump in my carpel area. Since this seems more pronounced after you get up and when the wrist are at an odd angle ie riding bike it seems you would have some sort of nerve compression in the wrist area most likely a carpel tunnel like problem. My advice its to see you DR right away as this can become a permanent problem if left untreated.
Hi,
'Abnormal nerve sensations such as pins-and-needles, tingling, burning, prickling or similar feelings are all known as "paresthesias". Some cases are severe enough to be considered painful. Paresthesias usually result from nerve damage due to pressure, entrapment, or nerve diseases. Continued nerve damage can lead to finger numbness and permanent loss of feeling. Any abnormal sensation needs medical investigation.
Distinction as to which fingers are tingling is important to diagnosis. The main fingers are more likely to be affected by conditions such as carpal tunnel syndrome. The 4th and 5th fingers are affected by the ulnar nerve, which can be interrupted by pressure at the elbow or the chest area (e.g. thoracid outlet syndrome).
Parethesias in the hands and fingers can also be caused by broader diseases such as peripheral neuropathy (more common in the feet but hands can be affected) and various others. Correct diagnosis of the causes of finger paresthesias is important and treatment can often reverse the damage. '
You could read more about this at the following link -
http://www.cureresearch.com/sym/tingling_fingers.htm#possible
Apply calamine lotion at the site of the eczema and see if it helps. You could take some oral antihistamine medications like cetrizine or loratadine. You need to maintain a good personal hygiene .
Anti-itch drugs, often antihistamine, may reduce the itch during a flare up of eczema, and the reduced scratching in turn reduces damage and irritation to the skin.
For mild-moderate eczema a weak steroid may be used (e.g. hydrocortisone or desonide), whilst more severe cases require a higher-potency steroid (e.g. clobetasol propionate, fluocinonide).
Eczema can be exacerbated by dryness of the skin. Moisturizing is one of the most important self-care treatments for sufferers of eczema. Keeping the affected area moistened can promote skin healing and relief of symptoms.
http://en.wikipedia.org/wiki/Eczema
Consult your doctor to find out the cause of the tingling in your case.
Let us know if you need any other information.
Regards.