hi, first of all go for complete pannel allergen test to get the list of all allergic substanes and then try to avoid exposure to them, if ony few substance are fiund allergic then you can go for desensitisation and for that you have to meet an immunologist. actually in changing weather condition our body is not able to prouce adequatre amount of
antibodies and thus we get ill, so it is advisable to avoid exposure to extreme of weather, drink a lot of water every day, go for atleast 45 min morning or evening brisk walk, do exercises regularly , take vitamin b complex and
vitamin c, avoid cold drinks, alcohols and
smoking.take some hot trinks at regular interval and do gargle with glycoseptol atleast once a day, avoid excess of sugar intake, consumes good amount of green and fresh vegetables.
you should also go to some yoga centre and practice it regularly , avoid
stress and
anxiety , with all these your condition will certainly improve.
wish you all the best.