I just had restylane silk injection. Can I wash my face using cold water with skin medica facial cleanser?

Thank you for your question.  You should be fine to resume your skin care regimen after your procedure.  I would avoid a lot of firm manipulation of the lip area as this may induce more swelling.  

Yes, you can resume your skin care regime after
Restylane Silk injections. However, for the first few hours after injections,
avoid using any skin products with acids or exfoliative scrubs as this may
sting at the injections sites. Furthermore, for the next 24-72 hours make
sure to avoid vigorously scrubbing around the lips to avoid increased swelling.