Rubbed forehead within 20 mins of having first Botox injections.

You
should try to avoid rubbing your face and head after Botox as this can cause
the substance to migrate to other areas. This can sometimes result in
drooping eyelids, but wait a couple of weeks to let the results settle in to see if you have caused any migration. If this is the case, the results will wear off with the Botox and won't be permanent. 

Thank
you very much for your question and congratulations on your recent Botox
session. There is certainly a chance for Botox to migrate to surrounding areas
with vigorous rubbing immediately after treatment. Although this may or may not
have occurred in your situation, there is little that can be done at this time.
The results from your injections will start to become apparent in two to three
weeks, and will take up to three months to wear off. If you have any further
concerns, I recommend speaking with your Botox provider. 

It is recommended not to rub vigorously where Botox was injected for 4 hours after the procedure to reduce the risks of migration to other muscles. In 2 weeks, you will see the full effects. As long as this was after 4 hours, then your migration risks are pretty low. There's not much to do now, but wait. Be sure to follow up with your injector in 2 weeks.Best wishes, Dr. ALDO :)

It's unlikely that you negatively impacted your results. Keep in mind, it will take 1-2 weeks for final results with Botox and results will last 3-4 months. Best, Dr. Emer

Rubbing or massaging areas of recent Botox injection will likely neither help nor hinder the effects of the injections.  For years injectors have been going back and forth as to what will provide the best results, but in reality it likely doesn't matter much.  Follow up with your injector if you see any adverse effects, but I wouldn't worry!