You will immediately see the benefits of the fillers and look younger but there may be some initial redness and localized swelling and occasionally some bruising at the injection sites. These symptoms generally settle over a matter of hours. Any lumpiness or bruising clears over the following few days. Lips can swell quite a lot initially but this again subsides within a few days, though in some patients it may take up to one week. Prior treatment with Arnica tablets for about 2 weeks can reduce potential bruising. It is also advisable to avoid ,if possible, anti-inflammatory medications such as Aspirin or Ibuprofen for 1 week prior to treatments as these medications can increase the risk of bruising.As Restylane is not derived from animals there is little chance of any allergic reaction which means no skin test is required before treatment.Despite this,very rarely there can be an allergic response in 1 in 2000 patients which mayrequire treatment with anti-inflammatory medication.