1 week after Botox, great results but my forehead is now covered in red bumps. (Photo)

Yes, I agree with previous answers.  It does not look related to the Botox.  I would ask your doctor what was used to prep your face before the injection and make sure not to use that again.  Looks like an allergic reaction.

Small bumps after botox is fairly uncommon and can occur for the following reasons:-allergic reaction to the prep agent-rare reaction to type of saline used with injection with botox-extremely rare to proteins associated with botox injection-rare- patients who have paradoxical acne after botox

This doesn't appear to be from the Botox injections themselves, but rather, a reaction, probably, to the solution used to prep your face. It should clear up with time. Make sure to stick to a mild cleanser such as Cetaphil and stay away from any harsh skin care products like retinol until it clears up. Best of luck.

Thank you for your question. This definitely appears to be a reaction from the prep solution prior to your Botox treatment because of the pattern of the red bumps. This should clear up in a few days. Use mild clearnser and moisturizer like Cetaphil and follow up with your doctor if it doesn't improve. Best of luck, Dr. Heffernan

The pattern of the redness does not look to be at the Botox injection sites.  Like others have said it could be the prep.  You could use an over the counter hydrocortisone cream lightly on the area.  Certainly if not clearing soon see your provider.
Dr ODell

Thank you for your post. The red bumps are likely due to the agent used to prep your skin prior to the Botox injections and should resolve on its own soon. Be sure to follow-up with your injector.Best,Benjamin J Cousins MD

This likely is a rash from topical products used on the skin prior to your botox treatment.  This should self-resolve.  Be sure to use fragrance-free products.  If this does not go away or gets worse, follow up with a board-certified dermatologist for further evaluation and treatment.

Thanks for sharing your question and photo. This is probably related to something used during the procedure to prep the skin or something that was applied to the skin after the procedure and not the Botox itself. If it does not resolve on its own in the next couple of days, I would followup with your injector. 

Most likely this is the result of an allergic reaction to something that was used to prep the area and not due to Botox. If it continues see a board certified dermatologist

It is difficult to tell what it is exactly from the photograph that you have submitted. If this is not resolved in the next few days or a week I would most likely see a dermatologist and have them evaluated you in person. Good luck from York City