I think i gave my husband to much nuquil and benadryl now he says he's having trouble breathing and really sleepy what would u do??

Doctor can evaluate: "Trouble breathing" means one needs to see a doctor because it can be many things, such as an allergic reaction, a heart problem, pneumonia, etc... Trouble breathing can also be due to asthma-type symptoms if the person is prone to getting such problems with any cold, flu, allergy, or strep symptoms. If one is worried about a drug overdose combined with trouble breathing, 911 and the ER can help.