There is no one remedy for a sinus infection. In fact there are many. If you tell more about the disease condition, how it all started, for how long it is there, and few more basic things about it, then a one homoeopathic medicine could be shortlisted for you.
There is not one remedy which is correct for everyone with sinusitis, it depends on the totality of your symptoms to choose the correct one.
but one remedy is used commonly is kali bichrome 30x
Alium Cepa is the remedy for allergic rhinitis
take Arsenicum album 200 twice a day, followed with Blata Q in half a cup of water, thrice a day. Asthma needs prolonged treatment. S C GAKHAR
Homeopathy remedy by the name 'Histamine'
There is no such remedy
swimming
It's not a dose which specifies anything to be a homeopathic remedy. For anything to be called a homeopathic remedy, it has to be prepared by a certain process called potentisation and satisfy "law of similar/like cures like"
Thuja
Find a homeopathic veterinarian and ask. There are a few, but antibiotics are still the most effective remedy.
Ledum Pal
Nux Vomica
Rauvolfia serpentina Q
Aromatherapy oils can cancel out the effectiveness of the homeopathic remedies which contain the essence or vibration of a substance. Peppermit, for instance, will negate the good effect of a homeopathic remedy. Instructions for homeopathic is to avoid brushing your teeth, use mouthwash, etc. before or after the use of any homeopathic remedy.
Ginseng and constituional remedy
arnica Montana
It is risky to take a cold remedy with tramadol and Valium (diazepam) because there may be a high dose of antihistamine in the cold remedy. All three, regardless of the amount of antihistamine, will have a sedating effect.