Hi,
Welcome to HealthCareMagic.com I am Dr.J.Mariano Anto Bruno Mascarenhas. I have gone through your query with diligence and would like you to know that I am here to help you.
Question : Muscle spasms relieved with rubbing is a sign of improvement in neuropathy?
Answer : No
It is not
You have mentioned three problems
1. Muscle Spasm
2. Neuropathy
3. Shocking sensation in right leg close to knee
All these three are suggestive of
Spinal Cord pathology in addition to Neuropathy
The Shocking Sensation can be lhermitte's sign
Please consult a Neurosurgeon at the earliest
Hope you found the answer helpful.
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Best Wishes for Speedy Recovery
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Take care.