Why Does Erythema and Skin Warmth Happen After Restylane Injection

Restylane may cause some redness at the needle sites of insertion, and redness may be caused by bruising.  Warmth should not occur.  If a numbing cream had been applied prior to the injections, then maybe the skin is reacting to this topical cream.

Without knowing how soon you experienced this after your treatment, it's difficult to speak specifically.  If you only experienced this for a short time after your treatment, this may be a temporary reaction to the topical numbing product or the injection process itself. 

If this reaction is delayed or not resolving soon after treatments, you should report this to your practitioner for further instruction.

These signs could represent a skin infection and should be discussed with your injecting doctor.  Generally the skin settle down quickly after Restylane injections.  Typically by 24 or 48 hours, the bee stung effect is gone.  If you are describing a skin reaction beyond this time frame, it warrants bringing it to the attention of your injecting physician.