Thank you for your question vjb. I understand your concern. Botox is a purified protein used to address wrinkles associated with facial expression. When injected into the skin Botox will relax the muscles and smoothen out the overlying wrinkles. The most common areas of treatment are in the upper face. These include the horizontal lines seen on the upper forehead when one raises the brows, the vertical lines seen between the brows when one frowns (frown lines), and the crow's feet seen around the eyes when one smiles.It is difficult to make an assessment without a formal exam in the office where I can view the skin in multiple angles and observe wrinkles formed with facial expression. However I hope the information provided here is helpful.The pivotal studies used 20 units and 24 units (12 units per side) of Botox in the glabella area between the brow and around the eyes to address the frown lines and crow's feet, respectively. These studies demonstrated that the peak results are seen 14 days after the treatment and most people enjoy their results for 3-4 months. At that point, a maintenance treatment is recommended. While some people start to see results as early as the next day, it can take two weeks for full results so patience is important. We have our patients return two weeks after their treatment to assess their results via photographs. At that time additional units may be added if necessary.Although 20 units is a good standard dose to start with for the frown lines, some people require a higher dose because of higher muscle volume. This is common in mature patients, in those with large bulges from expressive faces, and in men. I find that Botox still works in these cases, just a higher dose is required. I have used up to 40 units in the glabella.There have not been such studies published for the horizontal lines on the upper forehead. However, in my experience I find that 10-20 units works well in this area. For patients with narrow foreheads a lower dose may be used and those with a broad forehead generally require higher doses. I have also found that the full results in this area are seen by two weeks. Therefore, we have our patients return two weeks after their treatment to assess the results via photographs. At that point additional units may be used if further enhancement is desired.Dosing of Botox is by the unit. The concentration depends on the reconstitution of the product. The manufacturer recommends reconstituting 100 units in 2.5 mL, giving a concentration of 40 units/mL or 4 units/0.1 mL. The product is withdrawn from the vial into syringes prior to its use. The number of syringes depends on the concentration and the size of the syringes. In my practice I reconstitute the product per the manufacturer's guidelines and use 1 mL syringes. I typically withdraw 20-30 units (0.5 mL to 0.75 mL) in any syringe. So I would likely use two syringes for a total dose of 46 units.With any injection, there are risks such as pain, bleeding, bruising, redness, swelling, tenderness, and infection. We take special precautions to minimize these risks such as using a painless technique. We also treat bruises with a laser as early as the next day. Bruises usually resolve within two weeks if untreated. After a laser treatment bruises usually resolve in 1-3 days, but may still take two weeks for full resolution.After a Botox treatment, I recommend that my patients avoid heat exposure, alcohol consumption, and strenuous exercise for 24 hours and not lie down flat for four hours. This is because all of these activities may possibly lead to the movement of the product and consequent side effects such as droopy eyelids as described above. Although there have been no definitive studies shown that these actually occur and some physicians do not provide such aftercare instructions, in the absence of data I err on the side of caution and recommend that my patients avoid such activities.Please consult with a doctor for specific recommendations. Good luck!