I disagree. Allergic reactions causes rashes and itching. What colour are the bumps? How many? I am guessing it's overproduction of sebum (oil), considering that these bumps are in the T-zone area. If the bumps are small, white and hard, this could mean you are using too much oil pH based moisturizer. Of course we're all just guessing here due to your lack of description... But let us know more. There are masks, scrubs and cleansers out there... I suggest getting a consult at a counter that specializes in skincare like Lancôme, Clinique, Clarins, Vichy, as they are much better equipped to address your concerns. I do recommend however, seeing a Dermatologist if the symptoms persist or get worse with a burning and / or itching sensation... Just to be on the safe side and to put your mind at ease.