Oratane 20mg; 4th week and acne is getting worse?

I am taking oratane 20mg once a day, in first 3 weeks my acne didn't get worse and neither i had any dryness, but now its 4th week and acne is getting worse and pai full, it's more under the skin than above thats why i feel pain. Is it normal ? Shold i increase the dose of my medicine?

No doctor answers yet