Would you be able to recommend the best online delivery by post pharmacy for an autistic person in the United Kingdom of Great Britain and Northern Ireland?

Do you mean those that fill your prescription and then send it to you direct, rather than having to collect it from a local pharmacy?

Yes!

Yes!

I use what used to be called Echo, but it's now owned by Lloyd's Pharmacy. The app is called "LloysDirect (formerly Echo)". Though you can just use the website (web.lloydsdirect.co.uk). It's easy to make an account, and order your meds. Then they're sent directly to your door.