Personally, I consider intravenous administration among the three routes of drug administration to be the fastest and most effective in relieving pain.

I think intravenous is the best for quick pain relief because in this route medicine goes straight into the bloodstream and then to the site where action is needed , working fast.

From an effectiveness standpoint, I also prefer intravenous administration because of its ability to bypass some of the physiological barriers that can slow drug absorption.

I like intravenous because it skips obstacles that slow absorption, making it more effective in my opinion. The drugs that are taken oraly do not go directly to the site of action but they are transported from the GIT to the liver where they are processed which is technically called as first pass metabolism and it is only after processing that the drugs are released into the circulation for transport to the target organ. similarly, time is required for absorption of drugs from the site of injection in case of intra muscular route of administration of a drug.

If I were to avoid pills and injections, I would favor alternative approaches such as physical therapy, heat or cold therapy, and non-pharmacological pain management methods like meditation and relaxation

You have mentioned some effective alternatives to the pills and injections . As a health professional, I would like to mention about some alternative routes of drug administration if we have to avoid pills and injections and they include topical application of gels/creams or ointments to the skin. Similarly, we have inhalational drugs, intranasal sprays or transdermal patches etc. Each of these can serve as an effective alternatives.

All the best .