I'm not sure by what you mean by full-face Botox, but that is concerning. Many muscles might be affected by such treatment that could cause unwanted side effects. if the lower eyelids sag because of a lack of muscular support, the eyes can dry out and as they sag they may cause new but temporary...
There has been no association between botox treatment and hairloss, regardless of the site of treatment, nor number of units. This may be an unrelated condition and I would suggest you see a board certified dermatologist for an evaluation of the hair loss.
We advise you to wait at least 4 hours before rubbing the area, but 24 hours would be a safer time frame if you were planning a vigorous facial massage. There aren't any good scientific studies on this, which is why different injectors have different recommendations. The theory is that...