i have used Duac once daily gel just for 4 days as per doctor's prescription and some side effects that are known to be associated with this medicine: Itching (pruritus), Dry skin, Skin redness, Skin tingling are now appearing and i have stop using the gel and also very much worried that when would this redness would end or get reduce. if anyone has used it plz tell me when this redness and dryness of face would get reduce ????? :( :(