Do not have Botox treatment if you: are allergic to Botox or any of its ingredients (see the end of the Medication Guide for a list of ingredients), are allergic to cow’s milk protein, had an allergic reaction to any other botulinum toxin product, such as Myobloc, Botox, or Xeomin, have a skin infection at the planned injection site, under 18 years of age, or are pregnant or breastfeeding. The dose of Botox is not the same as the dose of any other botulinum toxin product and cannot be compared to the dose of any other product you may have used. Tell your doctor about any swallowing or breathing difficulties and all your muscle or nerve conditions such as amyotrophic lateral sclerosis [ALS or Lou Gehrig’s disease], myasthenia gravis, or Lambert‐Eaton syndrome, which may increase the risk of serious side effects including difficulty swallowing and difficulty breathing. Serious allergic reactions have occurred with the use of Botox. Dry eye has also been reported.