I recently had my first ever botox and have been experiencing a heavy feeling in my forehead how long will this last? (Photo)

From your photo it appears that you are attempting to raise your eyebrows. You may find that you are able to raise one eyebrow more easily than the other simply because the muscle in one eyebrow is stronger than the other. The way in which the Botox was injected will also have an influence on this but I wouldn't worry about this too much since you said yourself, it looks natural when your face is relaxed. Practicing some eyebrow raising lifting exercises may help you resolve the heaviness. Some patients do state that they feel a sense of heaviness which fades in and out when they have Botox. This is natural and it depends on whether you can cope with the feeling or not. This feeling will dissipate as the Botox wears off. I wouldn't recommend having further Botox until your existing Botox has dissolved in three to six months time. After this time period, you can reconsider whether you would like to repeat the treatment. The anxiety will probably fade once the problem has been resolved. 

It will take 3-4 weeks for the botox to calm down and then 3-4 months for it to resolve.  If you do not like this look, you will want less dose or a different injection pattern in the future.  Please see an expert.  Best, Dr. Emer.

This does sound like the right amount of Botox. Minor asymmetry is normal and performing a "touch up" a few weeks later is considered appropriate to achieve a more ideal result. I suggest you see your injector. You look great and this issue is not considered a complication from treatment. Perhaps taking something for your anxiety will help to reduce some of your symptoms.
Best wishes, Dr. ALDO

Thank you for your question.  That is very high dose of Botox for the forehead.  When you immobilize the frontalis muscle (the forehead) you can get a very heavy feeling because you can no longer lift your brows up.  Try a lower dose next time.  I typically start with 8-12 units.  Botox lasts 3-4 months.   Best of luck to you! 

So  heaviness  is not at all unusual after botox injections into forehead frown lines .That exact muscle in fact is designed to raise your eyebrows and thus will inevitably feel heavy. Anxiety is a normal part of doing something scary and new but not specifically related to botox in my experience. 
If you are uneven then your practitioner can even you out with some more botox above your brow or if they are very experienced, a little below each bro which should alleviate the heaviness as well.
Hope that helps. 
Adam Goodwin

Thanks for your question and sorry that you are having these concerns.  Your Botox does not cause anxiety.  And the heaviness will subside over the next few weeks – if not, you had too much injected.  We always recommend that you have these injections given in the offices of board certified dermatologists or plastic surgeons as we know the most when it comes to these treatments – including when not to keep chasing and when we need to let things be.  If you are having this heaviness sensation, wait now and let it subside.  If it doesn’t get better, the Botox will go away in 3-4 months, and it would show that you had too much given.  You can choose to make it less wrinkled but not less heavy – or let things be for a few weeks and see what happens.  Best of luck.

It may be that you are a little nervous about the the effect of the botox and this triggered some of your anxiety. You don't say if this was the first time that you had botox. Some patients need to get used to the feeling that they can't lift the forehead like they are used to doing. It sounds like the dose was appropriate. You might want to talk with your practitioner about maybe trying a lower dose the next time. You will probably see some lines but they will be softer and this may be acceptable to you. If the asymmetry bothers you than you should have a little more botox injected into the area. Otherwise the botox should gradually wear off in about 3 months. Hope this helps

You may feel a heaviness initially after Botox injections for forehead lines.  If the heaviness lasts for more than 3 weeks, you may have had too much Botox.  Forehead lines, heaviness and lowering of the eyebrows must be considered when deciding on the Botox dosage.  It is better to have some forehead lines rather than lowered eyebrows.

Thank you for your question. With a lot of botox in the forehead, the brow can feel heavy. Typically I'll start with 15 units and go up from there. Sometimes it's impossible to both treat small wrinkles right above the brows and NOT give that heavy brow feeling - so I'll give my patients the choice. Botox will dissipate in 3-4 months, but you should start to feel less heavy in about 4-6 weeks. I haven't heard of botox causing anxiety. Best of luck! Always go to an experienced injector. 

Thank you for your questions and photos.
Occasionally patients can experience a sense of "heaviness " as the muscles diminish activity.
This usually goes away quickly.
35 units is not an unusual amount to be placed in forehead.
The anxiety you're feeling is an unusual complaint.
The Botox will wear off, generally in 3-4 months.
Best of luck to you.