I have a tasteless tongue as of now, coincide with the feeling of allergy on my sinus. Also, I keep on spitting mucus from my mouth. This mucus gets dry when I take antihistamine once a day. I just survived from a high fever in one day after taking paracetamol and self described antibiotic cefalexin. Could you explain what happened to me and first medication here?
In my opinion, you should take Montelukast tablets. It works slightly different from typical anti-allergy Chat Doctor.  It is usually taken prophylactically, and is quite useful in seasonal allergy. Also, it reduces the need of high dose antibiotics.