Can you use Hypercare during the day?

For the best effect Hypercare should be used at night and on completely dry skin.
However, as your dermotologist has said, it is still be ok to use the Hypercare in the morning after a shower. You will need to make sure you dry the skin completely first - a hair dryer may be helpful!

If you find it not as effective as you remember go back to using it at night.

I assume you're using hypercare under your arms? If so, results are better when used at night (when you are less likely to sweat) with a tight fitting tshirt to avoid the product running off.