###Human: Why am I experiencing brain fog and feel pressure in head and dizziness? ###Assistant: Hello Dear I am sorry about your health condition. which antipsychotic drugs are you using? Yes sinusitis patients feel foggy mind and heavy ness in the head. The heavyness may aggravated on head bending position. Few anti psychotics usage may also cause cloudy mind with confusion. So for sinusitis use water vapour inhalation thrice a day for five days. Avoid cool drinks and ice creams. Use tablet monterleukast and levocetrizine once a day for five days. Do yoga and meditation regularly. If symptoms not improved please consult with your treating doctor he will change the dosage and treat you accordingly. Take care.