hello Dear!
thank you for asking. I read your query and i want you to know that if the indent on your head is not preceeded by some trauma or fall then it is probably innocuous and it will go away. If it doesn't in a week you can see Nearby Gp to assess this bump and sort out the etiology for you. If it hurts simple acetaminophen or topical NSAIDs will be enough.
Now your main Concern.
Allergic rhinitis with allied morbidities
you need 3 phases for management
1)Avoidance:
Avoiding exposure to allergens such as pollen, dust mites, and mold to a minimum and all other environmental control measures.
2)Medication therapy
a-Second-generation antihistamines
Cetirizine (Zyrtec) Levocetirizine (Xyzal) Cetirizine and
pseudoephedrine (Zyrtec-D) Fexofenadine/pseudoephedrine (Allegra-D)
Loratadine/pseudoephedrine (Claritin-D 24 Hour, Claritin-D 12 Hour)
b-Leukotriene receptor antagonists
Montelukast (Singulair)
c-First-generation antihistamines
Chlorpheniramine (Chlor-Trimeton)
Diphenhydramine (Benadryl, Benylin) Hydroxyzine (Atarax, Vistaril, Vistazine)
d-Decongestants
Pseudoephedrine (Sudafed)
e-Nasal corticosteroids
Mometasone (Nasonex) Beclomethasone (Beconase AQ, QNASL) Budesonide inhaled (Rhinocort Aqua) Fluticasone (Flonase) Ciclesonide (Omnaris)
Fluticasone furoate (Veramyst) Triamcinolone (Nasacort AQ)
f-Intranasal antihistamines
Azelastine (Astelin) Olopatadine intranasal (Patanase)
g-Intranasal cromolyns
Cromolyn sodium (Nasalcrom)
h-Intranasal
anticholinergic agents
Ipratropium (Atrovent Nasal Spray 0.03%)
3) immunotherapies
if the above two precautions could not modify your condition then i am afraid you would need a step up. that is immunotherapy
There are sublingual and subcutaneous immunotherapies SLIT SCIT. you can discuss the possibility with your doctor.
4) see the Otorhinolaryngologist for ruling out surgivcally treatbale causes or complications of allrgic rhinitis like deviated nasal septum,
chronic sinusitis polyps or turbiectomies for relief.
I hope i was of some help
regards
Dr S Khan