I am Doctor Thomas, a double board certified doctor in internal medicine and integrative medicine, with advanced training in several other fields. I am a clinician of over 20 years experience. I will give you an initial answer or ask you a question, but be sure to use reply to expert to communicate with me as needed.
Itching without a rash can indicate systemic medical problems.
Heavy metal toxicity
Liver or kidney problems.
Hidden infection or maglignancy.
Gallbladder problems. Polycythemia vera.
With the lip swelling, I dent to think allergy, but you have no rash, so, this is an equivocal , yet educated guess. You need to see your doctor for exam, and all routine labs, as well as sed rate. Claritin is a long acting antihistamine that your doctor might suggest, depending on what the findings are.
If the swelling increases, or other symptoms develop, I would suggest that you should be at A&E.
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