<s>[INST] I have chronic issues with allergies and sinuses! As far back as I can remember. I used to take allergy shots, but every time they would up my dosage, I had a reaction. When I was old enough to make the decision to discontinue my shots...I stopped. I am ready to start back now...I am always sick! I have a blocked sinus right now. It feels like someone hit me with a 2×4 in the cheek and my teeth , on that side, are killing me. I have been able to blow very little out. What comes out, seems to be pure pus . Is that possible, and if so, do I need to get started on an antibiotic asap? [/INST] Hello Well come to health care magic Dear patient, let me tell you one thing clearly that allergic disorders like asthama and chronic allergic sinusitis have no permenant cure, these occur in episodic attacks which need to be treated with antiallergic medicines to cut short the attack, treatement could be through prevention of the attack if the triggerer of the allergic episode is found and by avoiding the exposure to that triggerer like a particular perfume, pollen , dust, mites, smoke etc but this is generally not possible to trace out the triggerer , however some immunologists do the allergic profile testing in an attempt to find out the triggerer and help the patients to avoid the exposure to them. currently your allergic sinusitis seems to have got secondarly infected as you are having lot of pain in the sinuses along with purulent nasal discharge on blowing, so you can consult an ENT doctor who after examining and testing you will give you some antibiotic medicines to cure the secondary infection WISH YOU RECOVERY SOON thanks Dr Arshad </s>